Neovim line size and image rendering

[Kethku]

Maybe this is not the right place for this, but in the neovide discord there has been some talk about wanting a way to specify line sizes per line and to embed images.

Currently support for such things is done on a gui by gui basis rather than having a cohesive standard. Seems to me that such a thing should be specified by neovim (or some defacto standard format) and then implemented by each neovim gui.

Is this something that neovim-ui might support and or drive?