The general idea is (for example): You'll have sprite.png
sprite@1080p.png, sprite@1440p.png, spite@4k.png, ...
- If you are missing
@1080p,sprite.pngwill be scaled 1.5. - If you're missing
@1440p,sprite.png.
And so on. In code, always use sprite.png paths withouth the @, and GTK will figure out the right png to use.