As an example of the functionality the new RGBA system allows, this is possible in Sixel now. In the attached demo I’m using a new Makie.jl backend that’s a work in progress. Keep an eye out for it soon – TachiMakie.jl.
It’s also possible and pretty straightforward to connect the pixels generated by GLMakie to the pixel rendering support as @Ronis_BR has done with his very cool satellite sim system described in this topic - INPE's satellite simulator UI is now powered by Tachikoma.jl, and it is amazing! - #2 by Ronis_BR