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Some applications are excluded from skinning because they skin themselves – there’s no point trying to draw the windows of an app that draws them itselfthemselves. Then there are the applications that cause problems when skinned. Usually, this is because the programmer has done something non-standard or has made an incorrect assumption about, say, the sizes of windows. This can mean that windows do not display correctly, or resize incorrectly, or in the worst cases can cause a freeze or crash. If no workaround can be found the application has to be excluded.
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