FF6 style GBA adult Rydia

Thanks for the compliment!

http://www.lemoda.net/png/quantize/index.cgi
is an online .PNG quantizer. you have to upload your image somewhere and paste the link in the quantizer. It allows you to set the number of colors in your palette. if your image has more colors than you chose it will quantize the image and adjust low use color occurrences to a similar color that is used more often until the image will "fit" in the palette limit you chose. TL;DR it will fix your palette size and get rid of stray colors.

http://pixlr.com/editor/
The other link is a feature rich image editor that runs solely in your internet browser. you can do masks and layers like Gimp and PS can. It's comparable to the two, but it can't edit palettes. something I stumbled across searching for the quantizer.

now you can sprite at work without installing anything.

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here is an example of a 256 color .png quantized down to 16 colors.

before:

and after:



that image could be resized and used in ff6 now. it went from 256 down to 16 is why it looks like crud. (1st image linked from the Wikipedia article for Portable Network Graphics)