Pretty sure there's a website that'll convert a picture to colored block characters. Just gotta make it in pixel art first.

...or I suppose vim/neovim could be configured to do that, actually...

I found one, but it looks like its been down for years..

Aw rip
Hm....y'know what, I might unironically start fiddling with nvim once I get some free time, see if I can get a method lined up.
If nothing else, it'll push me to finally install a color highlighting plugin so hex color editing for config files isn't utterly miserable anymore.
I still have nightmares from starship.