[nostalgia] Cleanup icon rsrc generation

Makefile

@@ -17,6 +17,10 @@ PROJECT_PLAYER=./build/${BC_VAR_CURRENT_BUILD}/bin/${BC_VAR_PROJECT_NAME_CAP}
 pkg-gba: build
 	${BC_CMD_ENVRUN} ${BC_PY3} ./util/scripts/pkg-gba.py sample_project ${BC_VAR_PROJECT_NAME_CAP}
 
+.PHONY: generate-studio-rsrc
+generate-studio-rsrc:
+	${BC_CMD_ENVRUN} ${BC_PY3} ./util/scripts/file-to-cpp.py --rsrc src/nostalgia/studio/rsrc.json
+
 .PHONY: build-player
 build-player:
 	${BC_CMD_CMAKE_BUILD} ${BC_VAR_BUILD_PATH} ${BC_VAR_PROJECT_NAME_CAP}