Thread: Themes for Calibre
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Old 02-26-2016, 11:27 PM   #9
kovidgoyal
creator of calibre
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Quote:
Originally Posted by snafu21 View Post
I've just upgraded from 2.33 to 2.52 and lost theme in Calibre also.
That is because of Qt version mismatches. calibre comes with its own copy of Qt and your system themes will only work if they were compiled against a matching version of Qt. Newer versions of calibre use Qt 5.1. You can make it work by compiling calibre from source with the same version of Qt as is on your system, but that is a fairly difficult task.
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