Palettes

 This file tells you what recolors are used in smbx gfx pack graphics, however, the colors may not apply to specific tilesets such as Original and Ripped, which will use respectively the colors set by the author and the original game itself.
From LEFT to RIGHT:
Brown, Black, Gray, Silver, White, Yellow, Orange, Red, Burgundy, Pink, Purple, Steel Blue, Cyan, Green, Azure, Olive, Magenta, Gold, Spring Green, Lime, Snow, Shroob, Dark, Camo, Crystal, Ice, Ghost, Magma and Christmas.
 There's also two alternate versions of the palettes, Stone and Metal, which can make the graphics look like rocky or mettalic.