Add grey foreground for global parameter select

This only happens if we are not changing parameters, makes for a better
separation of the trigs and global params, since those are destructive.

2 files changed, 209 insertions, 190 deletions

diff --git a/src/drawing.c b/src/drawing.c
index acf1e63..149aa19 100644
--- a/src/drawing.c
+++ b/src/drawing.c
@@ -521,7 +521,12 @@ clear_parameters(void) {
 
 IWRAM_CODE
 void
-draw_parameters_wave(ChannelWaveParams *params) {
+draw_parameters_wave(ChannelWaveParams *params, bool global) {
+    u8 col_fg = COL_FG;
+    if (global && input_handler == handle_channel_selection) {
+        col_fg = COL_GREY;
+    }
+
     // Draw current wave data.
     {
         u8 *wave_a = params->wave_a;
@@ -536,23 +541,23 @@ draw_parameters_wave(ChannelWaveParams *params) {
 
         // Wave text.
         x -= 2;
-        txt_drawf_small("%02x%02x%02x%02x", x, y + 20, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x, y + 20, col_fg,
                 wave_a[0], wave_a[1], wave_a[2], wave_a[3]);
-        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 20, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 20, col_fg,
                 wave_a[4], wave_a[5], wave_a[6], wave_a[7]);
-        txt_drawf_small("%02x%02x%02x%02x", x, y + 28, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x, y + 28, col_fg,
                 wave_a[8], wave_a[9], wave_a[10], wave_a[11]);
-        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 28, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 28, col_fg,
                 wave_a[12], wave_a[13], wave_a[14], wave_a[15]);
 
         x += 70;
-        txt_drawf_small("%02x%02x%02x%02x", x, y + 20, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x, y + 20, col_fg,
                 wave_b[0], wave_b[1], wave_b[2], wave_b[3]);
-        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 20, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 20, col_fg,
                 wave_b[4], wave_b[5], wave_b[6], wave_b[7]);
-        txt_drawf_small("%02x%02x%02x%02x", x, y + 28, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x, y + 28, col_fg,
                 wave_b[8], wave_b[9], wave_b[10], wave_b[11]);
-        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 28, COL_FG,
+        txt_drawf_small("%02x%02x%02x%02x", x + 34, y + 28, col_fg,
                 wave_b[12], wave_b[13], wave_b[14], wave_b[15]);
     }
 
@@ -562,12 +567,12 @@ draw_parameters_wave(ChannelWaveParams *params) {
         size_t x = PARAMS_START_X;
         size_t y = PARAMS_START_Y + PARAMS_H - 12;
         for (size_t i = 0, k = 0; i < 4 * 2; i += 2, k++) {
-            draw_icn(x + 17 * k    , y, &tile[i * 2 + 0], COL_FG, 1, 0);
-            draw_icn(x + 17 * k + 8, y, &tile[i * 2 + 2], COL_FG, 1, 0);
+            draw_icn(x + 17 * k    , y, &tile[i * 2 + 0], col_fg, 1, 0);
+            draw_icn(x + 17 * k + 8, y, &tile[i * 2 + 2], col_fg, 1, 0);
         }
         for (size_t i = 0, k = 0; i < 4 * 2; i += 2, k++) {
-            draw_icn(x + 70 + 17 * k    , y, &tile[i * 2 + 0], COL_FG, 1, 0);
-            draw_icn(x + 70 + 17 * k + 8, y, &tile[i * 2 + 2], COL_FG, 1, 0);
+            draw_icn(x + 70 + 17 * k    , y, &tile[i * 2 + 0], col_fg, 1, 0);
+            draw_icn(x + 70 + 17 * k + 8, y, &tile[i * 2 + 2], col_fg, 1, 0);
         }
     }
 
@@ -575,17 +580,17 @@ draw_parameters_wave(ChannelWaveParams *params) {
     {
         size_t x = PARAMS_START_X + 140;
         size_t y = PARAMS_START_Y + PARAMS_H - 22;
-        draw_line(x, y + 4, x + 5, y + 4, COL_FG);
-        draw_line(x + 25, y + 4, x + 30, y + 4, COL_FG);
-        draw_line(x, y + 5, x, y + 16, COL_FG);
-        draw_line(x + 30, y + 5, x + 30, y + 17, COL_FG);
-        draw_line(x, y + 17, x + 30, y + 17, COL_FG);
-        txt_drawf_small("mode", x + 6, y, COL_FG);
+        draw_line(x, y + 4, x + 5, y + 4, col_fg);
+        draw_line(x + 25, y + 4, x + 30, y + 4, col_fg);
+        draw_line(x, y + 5, x, y + 16, col_fg);
+        draw_line(x + 30, y + 5, x + 30, y + 17, col_fg);
+        draw_line(x, y + 17, x + 30, y + 17, col_fg);
+        txt_drawf_small("mode", x + 6, y, col_fg);
 
         switch (params->wave_mode) {
-            case 0: { txt_drawf("A", x + 12, y + 7, COL_FG); } break;
-            case 1: { txt_drawf("B", x + 12, y + 7, COL_FG); } break;
-            case 2: { txt_drawf("A+B", x + 6, y + 7, COL_FG); } break;
+            case 0: { txt_drawf("A", x + 12, y + 7, col_fg); } break;
+            case 1: { txt_drawf("B", x + 12, y + 7, col_fg); } break;
+            case 2: { txt_drawf("A+B", x + 6, y + 7, col_fg); } break;
         }
     }
 
@@ -593,26 +598,30 @@ draw_parameters_wave(ChannelWaveParams *params) {
     {
         size_t x = PARAMS_START_X + 140;
         size_t y = PARAMS_START_Y + PARAMS_H - 45;
-        draw_line(x, y + 7, x + 7, y + 7, COL_FG);
-        draw_line(x + 23, y + 7, x + 30, y + 7, COL_FG);
-        draw_line(x, y + 8, x, y + 19, COL_FG);
-        draw_line(x + 30, y + 8, x + 30, y + 19, COL_FG);
-        draw_line(x, y + 20, x + 30, y + 20, COL_FG);
-        txt_drawf_small("vol", x + 8, y + 3, COL_FG);
+        draw_line(x, y + 7, x + 7, y + 7, col_fg);
+        draw_line(x + 23, y + 7, x + 30, y + 7, col_fg);
+        draw_line(x, y + 8, x, y + 19, col_fg);
+        draw_line(x + 30, y + 8, x + 30, y + 19, col_fg);
+        draw_line(x, y + 20, x + 30, y + 20, col_fg);
+        txt_drawf_small("vol", x + 8, y + 3, col_fg);
 
         switch (params->wave_volume) {
-            case 0: { txt_drawf("0", x + 12, y + 10, COL_FG); } break;
-            case 1: { txt_drawf("25", x + 9, y + 10, COL_FG); } break;
-            case 2: { txt_drawf("50", x + 9, y + 10, COL_FG); } break;
-            case 3: { txt_drawf("75", x + 9, y + 10, COL_FG); } break;
-            case 4: { txt_drawf("100", x + 6, y + 10, COL_FG); } break;
+            case 0: { txt_drawf("0", x + 12, y + 10, col_fg); } break;
+            case 1: { txt_drawf("25", x + 9, y + 10, col_fg); } break;
+            case 2: { txt_drawf("50", x + 9, y + 10, col_fg); } break;
+            case 3: { txt_drawf("75", x + 9, y + 10, col_fg); } break;
+            case 4: { txt_drawf("100", x + 6, y + 10, col_fg); } break;
         }
     }
 }
 
 void
-draw_parameters_square(ChannelSquareParams *params, bool sweep) {
+draw_parameters_square(ChannelSquareParams *params, bool sweep, bool global) {
     size_t x_offset = sweep ? 0 : 30;
+    u8 col_fg = COL_FG;
+    if (global && input_handler == handle_channel_selection) {
+        col_fg = COL_GREY;
+    }
 
     // Duty cycle.
     {
@@ -678,18 +687,18 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
         {
             size_t x = PARAMS_START_X + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 2, y + 7, COL_FG);
-            draw_line(x + 22, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("duty", x + 3, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 2, y + 7, col_fg);
+            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("duty", x + 3, y + 3, col_fg);
 
             switch (params->duty_cycle) {
-                case 0: { txt_drawf("12", x + 6, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("25", x + 6, y + 10, COL_FG); } break;
-                case 2: { txt_drawf("50", x + 6, y + 10, COL_FG); } break;
-                case 3: { txt_drawf("75", x + 6, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("12", x + 6, y + 10, col_fg); } break;
+                case 1: { txt_drawf("25", x + 6, y + 10, col_fg); } break;
+                case 2: { txt_drawf("50", x + 6, y + 10, col_fg); } break;
+                case 3: { txt_drawf("75", x + 6, y + 10, col_fg); } break;
             }
         }
     }
@@ -729,30 +738,30 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
         {
             size_t x = PARAMS_START_X + 31 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-            draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("vol", x + 5, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 4, y + 7, col_fg);
+            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("vol", x + 5, y + 3, col_fg);
 
             switch (params->env_volume) {
-                case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("6", x + 9, y + 10, COL_FG); } break;
-                case 2: { txt_drawf("13", x + 6, y + 10, COL_FG); } break;
-                case 3: { txt_drawf("20", x + 6, y + 10, COL_FG); } break;
-                case 4: { txt_drawf("26", x + 6, y + 10, COL_FG); } break;
-                case 5: { txt_drawf("33", x + 6, y + 10, COL_FG); } break;
-                case 6: { txt_drawf("40", x + 6, y + 10, COL_FG); } break;
-                case 7: { txt_drawf("46", x + 6, y + 10, COL_FG); } break;
-                case 8: { txt_drawf("53", x + 6, y + 10, COL_FG); } break;
-                case 9: { txt_drawf("60", x + 6, y + 10, COL_FG); } break;
-                case 10: { txt_drawf("66", x + 6, y + 10, COL_FG); } break;
-                case 11: { txt_drawf("73", x + 6, y + 10, COL_FG); } break;
-                case 12: { txt_drawf("80", x + 6, y + 10, COL_FG); } break;
-                case 13: { txt_drawf("86", x + 6, y + 10, COL_FG); } break;
-                case 14: { txt_drawf("93", x + 6, y + 10, COL_FG); } break;
-                case 15: { txt_drawf("100", x + 3, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+                case 1: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
+                case 2: { txt_drawf("13", x + 6, y + 10, col_fg); } break;
+                case 3: { txt_drawf("20", x + 6, y + 10, col_fg); } break;
+                case 4: { txt_drawf("26", x + 6, y + 10, col_fg); } break;
+                case 5: { txt_drawf("33", x + 6, y + 10, col_fg); } break;
+                case 6: { txt_drawf("40", x + 6, y + 10, col_fg); } break;
+                case 7: { txt_drawf("46", x + 6, y + 10, col_fg); } break;
+                case 8: { txt_drawf("53", x + 6, y + 10, col_fg); } break;
+                case 9: { txt_drawf("60", x + 6, y + 10, col_fg); } break;
+                case 10: { txt_drawf("66", x + 6, y + 10, col_fg); } break;
+                case 11: { txt_drawf("73", x + 6, y + 10, col_fg); } break;
+                case 12: { txt_drawf("80", x + 6, y + 10, col_fg); } break;
+                case 13: { txt_drawf("86", x + 6, y + 10, col_fg); } break;
+                case 14: { txt_drawf("93", x + 6, y + 10, col_fg); } break;
+                case 15: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
             }
         }
 
@@ -760,18 +769,18 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
         {
             size_t x = PARAMS_START_X + 59 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-            draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("dir", x + 5, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 4, y + 7, col_fg);
+            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("dir", x + 5, y + 3, col_fg);
 
             char arr_up[2] = { 0x19, 0 };
             char arr_down[2] = { 0x18, 0 };
             switch (params->env_direction) {
-                case 0: { txt_drawf(arr_up, x + 9, y + 11, COL_FG); } break;
-                case 1: { txt_drawf(arr_down, x + 9, y + 11, COL_FG); } break;
+                case 0: { txt_drawf(arr_up, x + 9, y + 11, col_fg); } break;
+                case 1: { txt_drawf(arr_down, x + 9, y + 11, col_fg); } break;
             }
         }
 
@@ -779,22 +788,22 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
         {
             size_t x = PARAMS_START_X + 87 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 2, y + 7, COL_FG);
-            draw_line(x + 22, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("time", x + 3, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 2, y + 7, col_fg);
+            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("time", x + 3, y + 3, col_fg);
 
             switch (params->env_time) {
-                case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("14", x + 6, y + 10, COL_FG); } break;
-                case 2: { txt_drawf("28", x + 6, y + 10, COL_FG); } break;
-                case 3: { txt_drawf("42", x + 6, y + 10, COL_FG); } break;
-                case 4: { txt_drawf("57", x + 6, y + 10, COL_FG); } break;
-                case 5: { txt_drawf("71", x + 6, y + 10, COL_FG); } break;
-                case 6: { txt_drawf("85", x + 6, y + 10, COL_FG); } break;
-                case 7: { txt_drawf("100", x + 3, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+                case 1: { txt_drawf("14", x + 6, y + 10, col_fg); } break;
+                case 2: { txt_drawf("28", x + 6, y + 10, col_fg); } break;
+                case 3: { txt_drawf("42", x + 6, y + 10, col_fg); } break;
+                case 4: { txt_drawf("57", x + 6, y + 10, col_fg); } break;
+                case 5: { txt_drawf("71", x + 6, y + 10, col_fg); } break;
+                case 6: { txt_drawf("85", x + 6, y + 10, col_fg); } break;
+                case 7: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
             }
         }
     }
@@ -803,22 +812,22 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
     if (sweep) {
         size_t x = PARAMS_START_X + 118;
         size_t y = PARAMS_START_Y + PARAMS_H - 25;
-        draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-        draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-        draw_line(x, y + 8, x, y + 19, COL_FG);
-        draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-        draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-        txt_drawf_small("num", x + 5, y + 3, COL_FG);
+        draw_line(x, y + 7, x + 4, y + 7, col_fg);
+        draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+        draw_line(x, y + 8, x, y + 19, col_fg);
+        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+        draw_line(x, y + 20, x + 24, y + 20, col_fg);
+        txt_drawf_small("num", x + 5, y + 3, col_fg);
 
         switch (params->sweep_number) {
-            case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-            case 1: { txt_drawf("1", x + 9, y + 10, COL_FG); } break;
-            case 2: { txt_drawf("2", x + 9, y + 10, COL_FG); } break;
-            case 3: { txt_drawf("3", x + 9, y + 10, COL_FG); } break;
-            case 4: { txt_drawf("4", x + 9, y + 10, COL_FG); } break;
-            case 5: { txt_drawf("5", x + 9, y + 10, COL_FG); } break;
-            case 6: { txt_drawf("6", x + 9, y + 10, COL_FG); } break;
-            case 7: { txt_drawf("7", x + 9, y + 10, COL_FG); } break;
+            case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+            case 1: { txt_drawf("1", x + 9, y + 10, col_fg); } break;
+            case 2: { txt_drawf("2", x + 9, y + 10, col_fg); } break;
+            case 3: { txt_drawf("3", x + 9, y + 10, col_fg); } break;
+            case 4: { txt_drawf("4", x + 9, y + 10, col_fg); } break;
+            case 5: { txt_drawf("5", x + 9, y + 10, col_fg); } break;
+            case 6: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
+            case 7: { txt_drawf("7", x + 9, y + 10, col_fg); } break;
         }
     }
 
@@ -826,22 +835,22 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
     if (sweep) {
         size_t x = PARAMS_START_X + 146;
         size_t y = PARAMS_START_Y + PARAMS_H - 25;
-        draw_line(x, y + 7, x + 2, y + 7, COL_FG);
-        draw_line(x + 22, y + 7, x + 24, y + 7, COL_FG);
-        draw_line(x, y + 8, x, y + 19, COL_FG);
-        draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-        draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-        txt_drawf_small("time", x + 3, y + 3, COL_FG);
+        draw_line(x, y + 7, x + 2, y + 7, col_fg);
+        draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
+        draw_line(x, y + 8, x, y + 19, col_fg);
+        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+        draw_line(x, y + 20, x + 24, y + 20, col_fg);
+        txt_drawf_small("time", x + 3, y + 3, col_fg);
 
         switch (params->sweep_time) {
-            case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-            case 1: { txt_drawf("1", x + 9, y + 10, COL_FG); } break;
-            case 2: { txt_drawf("2", x + 9, y + 10, COL_FG); } break;
-            case 3: { txt_drawf("3", x + 9, y + 10, COL_FG); } break;
-            case 4: { txt_drawf("4", x + 9, y + 10, COL_FG); } break;
-            case 5: { txt_drawf("5", x + 9, y + 10, COL_FG); } break;
-            case 6: { txt_drawf("6", x + 9, y + 10, COL_FG); } break;
-            case 7: { txt_drawf("7", x + 9, y + 10, COL_FG); } break;
+            case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+            case 1: { txt_drawf("1", x + 9, y + 10, col_fg); } break;
+            case 2: { txt_drawf("2", x + 9, y + 10, col_fg); } break;
+            case 3: { txt_drawf("3", x + 9, y + 10, col_fg); } break;
+            case 4: { txt_drawf("4", x + 9, y + 10, col_fg); } break;
+            case 5: { txt_drawf("5", x + 9, y + 10, col_fg); } break;
+            case 6: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
+            case 7: { txt_drawf("7", x + 9, y + 10, col_fg); } break;
         }
     }
 
@@ -849,18 +858,18 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
     if (sweep) {
         size_t x = PARAMS_START_X + 132;
         size_t y = PARAMS_START_Y + PARAMS_H - 45;
-        draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-        draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-        draw_line(x, y + 8, x, y + 19, COL_FG);
-        draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-        draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-        txt_drawf_small("dir", x + 5, y + 3, COL_FG);
+        draw_line(x, y + 7, x + 4, y + 7, col_fg);
+        draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+        draw_line(x, y + 8, x, y + 19, col_fg);
+        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+        draw_line(x, y + 20, x + 24, y + 20, col_fg);
+        txt_drawf_small("dir", x + 5, y + 3, col_fg);
 
         char arr_up[2] = { 0x19, 0 };
         char arr_down[2] = { 0x18, 0 };
         switch (params->sweep_direction) {
-            case 0: { txt_drawf(arr_up, x + 9, y + 11, COL_FG); } break;
-            case 1: { txt_drawf(arr_down, x + 9, y + 11, COL_FG); } break;
+            case 0: { txt_drawf(arr_up, x + 9, y + 11, col_fg); } break;
+            case 1: { txt_drawf(arr_down, x + 9, y + 11, col_fg); } break;
         }
     }
 
@@ -868,17 +877,21 @@ draw_parameters_square(ChannelSquareParams *params, bool sweep) {
     {
         size_t x = PARAMS_START_X + x_offset;
         size_t y = PARAMS_START_Y + PARAMS_H - 45;
-        txt_drawf_small("shape", x + 1, y - 12, COL_FG);
-        txt_drawf_small("envelope", x + 54, y - 12, COL_FG);
+        txt_drawf_small("shape", x + 1, y - 12, col_fg);
+        txt_drawf_small("envelope", x + 54, y - 12, col_fg);
         if (sweep) {
-            txt_drawf_small("sweep", x + 133, y - 12, COL_FG);
+            txt_drawf_small("sweep", x + 133, y - 12, col_fg);
         }
     }
 }
 
 void
-draw_parameters_noise(ChannelNoiseParams* params) {
+draw_parameters_noise(ChannelNoiseParams* params, bool global) {
     size_t x_offset = 30;
+    u8 col_fg = COL_FG;
+    if (global && input_handler == handle_channel_selection) {
+        col_fg = COL_GREY;
+    }
 
     // Bit mode.
     {
@@ -886,16 +899,16 @@ draw_parameters_noise(ChannelNoiseParams* params) {
         {
             size_t x = PARAMS_START_X + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 2, y + 7, COL_FG);
-            draw_line(x + 22, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("mode", x + 3, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 2, y + 7, col_fg);
+            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("mode", x + 3, y + 3, col_fg);
 
             switch (params->bit_mode) {
-                case 0: { txt_drawf("A", x + 9, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("B", x + 9, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("A", x + 9, y + 10, col_fg); } break;
+                case 1: { txt_drawf("B", x + 9, y + 10, col_fg); } break;
             }
         }
     }
@@ -935,30 +948,30 @@ draw_parameters_noise(ChannelNoiseParams* params) {
         {
             size_t x = PARAMS_START_X + 31 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-            draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("vol", x + 5, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 4, y + 7, col_fg);
+            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("vol", x + 5, y + 3, col_fg);
 
             switch (params->env_volume) {
-                case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("6", x + 9, y + 10, COL_FG); } break;
-                case 2: { txt_drawf("13", x + 6, y + 10, COL_FG); } break;
-                case 3: { txt_drawf("20", x + 6, y + 10, COL_FG); } break;
-                case 4: { txt_drawf("26", x + 6, y + 10, COL_FG); } break;
-                case 5: { txt_drawf("33", x + 6, y + 10, COL_FG); } break;
-                case 6: { txt_drawf("40", x + 6, y + 10, COL_FG); } break;
-                case 7: { txt_drawf("46", x + 6, y + 10, COL_FG); } break;
-                case 8: { txt_drawf("53", x + 6, y + 10, COL_FG); } break;
-                case 9: { txt_drawf("60", x + 6, y + 10, COL_FG); } break;
-                case 10: { txt_drawf("66", x + 6, y + 10, COL_FG); } break;
-                case 11: { txt_drawf("73", x + 6, y + 10, COL_FG); } break;
-                case 12: { txt_drawf("80", x + 6, y + 10, COL_FG); } break;
-                case 13: { txt_drawf("86", x + 6, y + 10, COL_FG); } break;
-                case 14: { txt_drawf("93", x + 6, y + 10, COL_FG); } break;
-                case 15: { txt_drawf("100", x + 3, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+                case 1: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
+                case 2: { txt_drawf("13", x + 6, y + 10, col_fg); } break;
+                case 3: { txt_drawf("20", x + 6, y + 10, col_fg); } break;
+                case 4: { txt_drawf("26", x + 6, y + 10, col_fg); } break;
+                case 5: { txt_drawf("33", x + 6, y + 10, col_fg); } break;
+                case 6: { txt_drawf("40", x + 6, y + 10, col_fg); } break;
+                case 7: { txt_drawf("46", x + 6, y + 10, col_fg); } break;
+                case 8: { txt_drawf("53", x + 6, y + 10, col_fg); } break;
+                case 9: { txt_drawf("60", x + 6, y + 10, col_fg); } break;
+                case 10: { txt_drawf("66", x + 6, y + 10, col_fg); } break;
+                case 11: { txt_drawf("73", x + 6, y + 10, col_fg); } break;
+                case 12: { txt_drawf("80", x + 6, y + 10, col_fg); } break;
+                case 13: { txt_drawf("86", x + 6, y + 10, col_fg); } break;
+                case 14: { txt_drawf("93", x + 6, y + 10, col_fg); } break;
+                case 15: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
             }
         }
 
@@ -966,21 +979,21 @@ draw_parameters_noise(ChannelNoiseParams* params) {
         {
             size_t x = PARAMS_START_X + 59 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 4, y + 7, COL_FG);
-            draw_line(x + 20, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("dir", x + 5, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 4, y + 7, col_fg);
+            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("dir", x + 5, y + 3, col_fg);
 
             char arr_up[2] = { 0x19, 0 };
             char arr_down[2] = { 0x18, 0 };
             switch (params->env_direction) {
                 case 0: {
-                    txt_drawf(arr_up, x + 9, y + 11, COL_FG);
+                    txt_drawf(arr_up, x + 9, y + 11, col_fg);
                 } break;
                 case 1: {
-                    txt_drawf(arr_down, x + 9, y + 11, COL_FG);
+                    txt_drawf(arr_down, x + 9, y + 11, col_fg);
                 } break;
             }
         }
@@ -989,22 +1002,22 @@ draw_parameters_noise(ChannelNoiseParams* params) {
         {
             size_t x = PARAMS_START_X + 87 + x_offset;
             size_t y = PARAMS_START_Y + PARAMS_H - 25;
-            draw_line(x, y + 7, x + 2, y + 7, COL_FG);
-            draw_line(x + 22, y + 7, x + 24, y + 7, COL_FG);
-            draw_line(x, y + 8, x, y + 19, COL_FG);
-            draw_line(x + 24, y + 8, x + 24, y + 19, COL_FG);
-            draw_line(x, y + 20, x + 24, y + 20, COL_FG);
-            txt_drawf_small("time", x + 3, y + 3, COL_FG);
+            draw_line(x, y + 7, x + 2, y + 7, col_fg);
+            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
+            draw_line(x, y + 8, x, y + 19, col_fg);
+            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
+            draw_line(x, y + 20, x + 24, y + 20, col_fg);
+            txt_drawf_small("time", x + 3, y + 3, col_fg);
 
             switch (params->env_time) {
-                case 0: { txt_drawf("0", x + 9, y + 10, COL_FG); } break;
-                case 1: { txt_drawf("14", x + 6, y + 10, COL_FG); } break;
-                case 2: { txt_drawf("28", x + 6, y + 10, COL_FG); } break;
-                case 3: { txt_drawf("42", x + 6, y + 10, COL_FG); } break;
-                case 4: { txt_drawf("57", x + 6, y + 10, COL_FG); } break;
-                case 5: { txt_drawf("71", x + 6, y + 10, COL_FG); } break;
-                case 6: { txt_drawf("85", x + 6, y + 10, COL_FG); } break;
-                case 7: { txt_drawf("100", x + 3, y + 10, COL_FG); } break;
+                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
+                case 1: { txt_drawf("14", x + 6, y + 10, col_fg); } break;
+                case 2: { txt_drawf("28", x + 6, y + 10, col_fg); } break;
+                case 3: { txt_drawf("42", x + 6, y + 10, col_fg); } break;
+                case 4: { txt_drawf("57", x + 6, y + 10, col_fg); } break;
+                case 5: { txt_drawf("71", x + 6, y + 10, col_fg); } break;
+                case 6: { txt_drawf("85", x + 6, y + 10, col_fg); } break;
+                case 7: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
             }
         }
     }
@@ -1013,7 +1026,7 @@ draw_parameters_noise(ChannelNoiseParams* params) {
     {
         size_t x = PARAMS_START_X + x_offset;
         size_t y = PARAMS_START_Y + PARAMS_H - 45;
-        txt_drawf_small("envelope", x + 54, y - 12, COL_FG);
+        txt_drawf_small("envelope", x + 54, y - 12, col_fg);
     }
 }
 
@@ -1027,10 +1040,10 @@ draw_parameters(void) {
             input_handler == handle_param_selection_wave ||
             input_handler == handle_param_selection_noise) {
         switch (channel_selection_loc) {
-            case 0: { draw_parameters_square(&pat->ch1.params[trig_selection_loc], true); } break;
-            case 1: { draw_parameters_square(&pat->ch2.params[trig_selection_loc], false); } break;
-            case 2: { draw_parameters_wave(&pat->ch3.params[trig_selection_loc]); } break;
-            case 3: { draw_parameters_noise(&pat->ch4.params[trig_selection_loc]); } break;
+            case 0: { draw_parameters_square(&pat->ch1.params[trig_selection_loc], true, false); } break;
+            case 1: { draw_parameters_square(&pat->ch2.params[trig_selection_loc], false, false); } break;
+            case 2: { draw_parameters_wave(&pat->ch3.params[trig_selection_loc], false); } break;
+            case 3: { draw_parameters_noise(&pat->ch4.params[trig_selection_loc], false); } break;
         }
         return;
     }
@@ -1040,10 +1053,10 @@ draw_parameters(void) {
             input_handler == handle_param_selection_ch3 ||
             input_handler == handle_param_selection_ch4) {
         switch (channel_selection_loc) {
-            case 0: { draw_parameters_square(&ch1_params, true); } break;
-            case 1: { draw_parameters_square(&ch2_params, false); } break;
-            case 2: { draw_parameters_wave(&ch3_params); } break;
-            case 3: { draw_parameters_noise(&ch4_params); } break;
+            case 0: { draw_parameters_square(&ch1_params, true, true); } break;
+            case 1: { draw_parameters_square(&ch2_params, false, true); } break;
+            case 2: { draw_parameters_wave(&ch3_params, true); } break;
+            case 3: { draw_parameters_noise(&ch4_params, true); } break;
         }
         return;
     }
diff --git a/src/main.c b/src/main.c
index 3a1c1d7..2693d51 100644
--- a/src/main.c
+++ b/src/main.c
@@ -26,7 +26,7 @@ WITH REGARD TO THIS SOFTWARE.
 //  + Per channel sound adjustments that modify the sound in all trigs.
 //      + Basic support.
 //      + Allow pasting parameters if they have been copied.
-//      - Draw the global params in grey if they haven't been adjusted or aren't
+//      + Draw the global params in grey if they haven't been adjusted or aren't
 //        currently selected.
 //      + Draw missing cursor.
 //  + Per-octave note adjustment with Select + L/R on a trig.
@@ -39,6 +39,12 @@ WITH REGARD TO THIS SOFTWARE.
 //  - Sync via MIDI via arduinoboy or something similar.
 //  - Sync via CV by using the link cable.
 //
+//  Bugfixes
+//  - Sound can get hung up sometimes, but I can't reproduce when this happens.
+//  Not sure if this is an emulator thing or happens also in hardware.
+//  - Cursor can stay in position instead of dissapering, again I can't
+//  reproduce this right now, just happened randomly. Needs investigation.
+//
 //  FIXME: Update readme and project pages with control changes.
 
 #include "gba/gba.h"