[quote="Bartosh":26y4hsd7]is it possible replace a certain color in a sprite?
Change "object 1" RGB(17,178,122) to RGB(100,23,50)[/quote:26y4hsd7]
Nope, not currently. It's been suggested several times, as well.
Currently the only methods of changing color in a sprite are the color filters (which affect the whole sprite) or to re-color them by hand and import them separately.