How do you change color characters in mugen?

To change character colors in Mugen, you typically modify the character's .def file or use an external tool like Fighter Factory. In the .def file, you can adjust the pal (palette) settings to specify different color palettes. Additionally, you can create or edit the character's .air file to link specific color palettes with particular actions or states. After making changes, ensure to test the character in Mugen to see the color modifications in effect.