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Very nice!

My only issue is with using literal pixels. With screens that have 3x-4x difference in DPI in wide use, it's easy to shoot oneself in the foot and make a GUI that looks indiscernible on a retina screen, or colossal on a low-end laptop screen.

I hope this will be addressed in a future version (and that there'll be more future versions! and wide adoption!)

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It's already handled, each Window has a `source_dpi` which is the DPI for which the layout was made, and depending on that and the monitor's DPI, Capy will habdle the scaling.

Many (maybe all?) native UI environments have a concept like a “logical pixel” which is scaled appropriately. I don’t know how much this project avails itself of those, but I did see that the web/WASM implementation uses `px` which in CSS is such a “logical pixel”. That has other issues on web of course, but I’d generally expect such a project to degrade on web because the native “UI” is very low level and unopinionated.

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