The maker uses preset formats for the different resources. JPGs will jumble colors around to make the file smaller, this is fine with large pictures, but for sprites – which are essentially small pixel based graphics this sucks. But never ever use JPG if you want something with transparecy. The game prefers that you save your pictures as PNGs, BMPs also work. I personally used IrfanView, a free photo editing software originally designed to remove the old school red eyed blare that was caused by old school cameras, all ye youngsters who only take photos with your phone probably don’t get it. In Photoshop, or GIMP, or Aseprite or any other pixel editing tool there is usually a choice to “index” the colours, or to “create a pallette from present colours” or simply to “change colour depth”. “Well that’s fine, mine doesn’t have that many different colours!” you might say. The trickiest thing with the maker is that it only accepts files capped at 256 colours. Click another color to change which one is transparent before moving on. During this preview 1 color will flash, this will be considered the transparent color in the game. After importing it it will show a preview. Use the Resource Manager in the maker, it’s the import tool that allows you to choose the category and then import the file you want. However, this requires your file to have some things set or it will just appear plain black in the maker, or the transpency won’t work. Simply drag your file into your project’s folder.To import your resources into the game there are two ways: Import Tool, Colour Depth, File format etc. Do you want to make your own art for your game? Maybe just want to import this cool thing you found but the maker is giving you an error? Yeah this guide will explain most things you need to know.

Rpg maker mv custom sprite sheets