Hi all, I just noticed that Plasma's desktop window uses an RGBA format. This is not only completely pointless as it's the bottom most window, it's also destroying all optimizations in KWin. KWin always has to go into the blending code path, which means rendering from bottom to top instead of rendering from top to bottom. And also KWin always has to clear the color buffer before rendering the Plasma desktop window.
Anyone an idea how we can change this? Cheers Martin
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