The point of things like sixel is to efficiently support interfaces where text is mixed with a little bit of graphics, like in many old-style apps of the 1980s and 1990s - they work very well for that. Replicating a full-featured GUI though is kinda outside their scope; you could make it work but it's not really the point.
Re:TUIs
by GekkePrutser on Wednesday March 16, 2022 @10:43PM
(#30707041)
By the way regarding sixels, in the original VT430 (IIRC) they were ridiculously slow :P. Anything today is lightning fast.
But to your question, yes there are 'text' console bitmap graphics protocols. Check out sixel for one example: https://saitoha.github.io/libsixel/ Some terminal emulators support other bitmap graphics too.