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Hi all,

I want change the constrast of several sprites

i found how change the contrast for one sprite :
Background.r-=2;
Background.b-=2;
Background.g-=2;

i tried to change two sprites, but only one sprite change :/
Background, floor.r-=2;
Background, floor.b-=2;
Background, floor.g-=2;

Please help ! ^^

Thanks

Background.r=floor.r-=2;
Background.b=floor.b-=2;
Background.g=floor.g-=2;

Thx man