[chris37879]

Its curious you couldn't find anything, tons of terminal emulators out there support this, I'm not sure what platform you're on, but on macOS, iTerm2 supports image backgrounds, on Linux, kitty is my goto customizeable terminal emulator, and I think even the new Windows Terminal supports them! Also, I think gnome's terminal emulator has an effect like this on it by default (or at least it did in some distro's default setup I've used)

[davb]

It wasn’t that I couldn’t find a terminal supporting background images (indeed, this is very well supported). It was that I couldn’t find anyone referencing using subtly textured (slightly noisy) images to avoid a very solid background.

[chris37879]

Most of the ones I’ve seen that support backgrounds have the usual options to tile/stretch the background, what’s stopping you from finding a pattern you like and making it a tiling background? There used to be a (now defunct) site out there called subtle patterns that had a massive CC0 library of these kinds of textures, toss it in an image editor, apply a color you like, tile it and call it done!