[Tool] Indexing trainer sprites

[cozzilicious]

Hello everyone, I'm new here and to rom hacking. I've started playing rom hacks again and creating my own peaked my interest. I'm starting out on the aesthetics so that it can maybe motivate me trhough all the scripting.

Anyway, how do I go about indexing a sprite? I have already edited some using Paint but they're sheets instead of individual sprites. Idk if that would be a problem or not. What tools would I need to be able to index them as well as import them to a rom hack.

I'm starting out on fire red if that makes a difference.

 

[kalarie]

Tool: Irfanview -> Decrease color dept to 16 colors to index your sprite.
Tool: Nameless Sprite Editor 2.1 to import sprites into the game.
Tool: Overworld EditorRE or OWM to import overworld sprites into the game.