diff --git a/src/app/gfx/bitmap.cc b/src/app/gfx/bitmap.cc
index e1be16f4..db385954 100644
--- a/src/app/gfx/bitmap.cc
+++ b/src/app/gfx/bitmap.cc
@@ -107,6 +107,12 @@ void Bitmap::ApplyPalette(SNESPalette &palette) {
   surface_->format->palette = palette.GetSDL_Palette();
 }
 
+void Bitmap::SetPaletteColor(int id, gfx::snes_color color) {
+  surface_->format->palette->colors[id].r = color.red;
+  surface_->format->palette->colors[id].b = color.blue;
+  surface_->format->palette->colors[id].g = color.green;
+}
+
 // Creates a vector of bitmaps which are individual 8x8 tiles.
 absl::StatusOr<std::vector<Bitmap>> Bitmap::CreateTiles() {
   std::vector<Bitmap> tiles;
diff --git a/src/app/gfx/bitmap.h b/src/app/gfx/bitmap.h
index 2afe5b8f..5ca40a6c 100644
--- a/src/app/gfx/bitmap.h
+++ b/src/app/gfx/bitmap.h
@@ -31,6 +31,7 @@ class Bitmap {
   void CreateTexture(std::shared_ptr<SDL_Renderer> renderer);
 
   void ApplyPalette(SNESPalette &palette);
+  void SetPaletteColor(int id, gfx::snes_color color);
 
   absl::StatusOr<std::vector<Bitmap>> CreateTiles();
   absl::Status CreateFromTiles(const std::vector<Bitmap> &tiles);