I have a Mac computer and recently got mine craft on it, I want to edit what the blocks look like in my game but I can't find how, I'm not trying to add a texture pack, I just want to change the look of the blocks myself. I've googled ways but can't find any results. In my minecraft folder there's the following:
 Assets
 Config
 launcher_profiles.json
 launcher.jar
 launcher.pack.lzma
 libraries
 logs
 mods
 options.txt
 resourcepacks
 saves
 versions
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