Variable font sizes

[LetsBlend]

I was thinking if it would be possible to make the headers for example support variable font sizes. Terminal emulators like kitty have support for those, so I was wondering if it is already possible to have different font sizes or if there where any plans to implement a feature like that.

[MeanderingProgrammer]

I have a backlog item to eventually do this: Feature Requests

Generally speaking I'm not going to implement it directly, at least I don't think that would have very good results. I would instead want neovim to integrate this feature in core, so that it can send the necessary escape sequences to change font sizes. From there my plugin will interact with the API to change font sizes, however that eventually gets implemented.