in game texture editor / maker

[runic fulcrum]

you can open a mod in game and then you can search a block or item or whatever and edit the texture that changes right as you change it basicllay in game texture maker

[clear granite]

Just make a texture pack bro

[candid stream]

this would only be useful for some people and there are probably fabric mods for this already

[frozen barn]

just make your own, change the texture, then refresh your texture pack

[gleaming dune]

I get it would be more accessible but js look at some video to make a texture pack

[fierce orchid]

yes