Level is dimmed, but alt+1 wont catch it

Also, I cant make any nice light effects. I can only use seteffect xD
Thanks for the compliments and tips, I'll fix the bubbliness around the edges and look for the smoother diagonal tile :P Also, red stones?
[Edit] Never mind, I see the stone you mean now :P Never noticed it was red.
Fixed bubbliness, removed most repetitive grass spots. Tried the red stone, but no.. It looked weird to me.