.gif solved [?]

So... gif right now pushes actual colors from the sprite/frames on case by case basis and... it should work for better gif exports... probably...

It fixed a problem with flickering of 'empty pixels', fixed flickering of 'color hues' and fixed 'dull colors'...

With the gif on the top you should see that I used a lot of vibrant colors, while stretching pixels to try and cause inconsistency, I even went as close to magenta as possible [255,0,254] and her mustache is still there, [255, 0, 255 is a color I picked for removing BG]

1 problem is: if you have semi transparent pixels they will turn more 'magenta' like, because gif can't use alpha channel, and just cuts 1 specific type of pixels.. just make sure you don't have those semi transparent pixels for GIF, or use PNG... [Maybe I will add 'Custom Key Color' so people can choose what color they want, but who is using 255, 0, 255 anyway?]

128x128 export:

256x256 export:

Upscaled export from 64x64 to 256x256:

Pixel export is sharp as well, unless it's blurred by the image viewer, this is just a 'zoomed in 64x64 gif':

so I think this is it for now... tool released [?]