Added Glitch Room Source code to Gitty

games/galaga/actors/sprite.gdshader

@@ -0,0 +1,7 @@
+shader_type canvas_item;
+render_mode unshaded;
+void fragment() {
+	vec4 pixel = texture(TEXTURE, UV);
+	if (max(pixel.r, max(pixel.g, pixel.b)) < 0.02) { discard; }
+	COLOR *= pixel;
+}