I think what they are talking about is the actual window that pops up as “blender”. You could use SDL before though I don’t think anyone actually did. I’m sure

I think what they are talking about is the actual window that pops up as “blender”. You could use SDL before though I don’t think anyone actually did. I’m sure the little fiddly bits are still done how they always were because it has to work across all the different windowing libs.