> So it seems like it actually modifies the drawing at the application level rather than rescaling it like an image. X also supports exactly this. Qt uses this

> So it seems like it actually modifies the drawing at the application level rather than rescaling it like an image. X also supports exactly this. Qt uses this information. gtk doesn't for whatever reason, forcing the workarounds. Most the so-called "X limitations" are actually just toolkit bugs if you get into the weeds.