Switched NESPalette.Default into a function that pulls colors from an array. These default values can now be set with the .SetDefault() function.

app/js/models/NESPalette.js

   }
 });
 
+
+var DEFAULT_PALETTE = [
+  "#080808",
+  "#343434",
+  "#a2a2a2",
+  "#efefef"
+];
+var OOB_COLOR = "#666666";
+
 /**
  * Object for manipulating the eight NES palettes.
  * @extends EventCaller
   "#000000"
 ];
 
-NESPalette.Default = [
-  "#080808",
-  "#343434",
-  "#a2a2a2",
-  "#efefef",
-  "#666666" // Out of bounds color.
-];
+NESPalette.Default = function(index){
+  if (index >= 0 && index < DEFAULT_PALETTE.length)
+    return DEFAULT_PALETTE[index];
+  return OOB_COLOR;
+}
+
+NESPalette.SetDefaultColor = function(index, r,g,b){
+  var Hex = (c) => {
+    c = c.toString(16);
+    return (c.length < 2) ? "0" + c : c;
+  };
+
+  var Clamp = (c) => {
+    return Math.floor(Math.max(0, Math.min(255, c)));
+  };
+
+  var color = "#" + Hex(Clamp(r)) + Hex(Clamp(g)) + Hex(Clamp(b));
+  if (index >= 0 && index < DEFAULT_PALETTE.length){
+    DEFAULT_PALETTE = color;
+  } else {
+    OOB_COLOR = color;
+  }
+}
 
 

app/js/ui/Renderer.js

 
   if (cw <= 0 || ch <= 0){return;}
 
-  clear(ctx, NESPalette.Default[4]);
+  clear(ctx, NESPalette.Default(4));
 
   ctx.save();
   var ctximg = ctx.getImageData(0, 0, cw, ch);
       var x = (i*scale) + dx;
 
       if (x >= 0 && x < cw && y >= 0 && y < ch){
-        var color = NESPalette.Default[4];
+        var color = NESPalette.Default(4);
         if (palcolored){
           color = surf.getColor(i, j);
         } else {
           var pinfo = surf.getColorIndex(i, j);
-          color = (pinfo.ci >= 0) ? NESPalette.Default[pinfo.ci] : NESPalette.Default[4];
+          color = (pinfo.ci >= 0) ? NESPalette.Default(pinfo.ci) : NESPalette.Default(4);
         }
         PutPixel(x,y,scale,color);
       }