After I boot up my PC, when I move or resize a window, it has 100% opacity, even when the corresponding settings at Window Manager Tweaks are at less than 100% opacity. If I change the settings in Window Manager Tweaks, the windows get transparent while they are moved or resized, but only until the PC turns off. When I turn the PC back on the windows have 100% opacity again while being moved/resized. This happened ever since I updated to 4.10. The "Saving session automatically" setting is turned on. I'm using Debian sid.
I've checked and it seems Xfwm does read the opacity settings from Xfconf correctly but then they get changed to 100 right after reading those settings. It looks like the culprit is the CLAMP macro being used, but this macro doesn't seem to be from Xfwm.
Turns out it wasn't the CLAMP macro, the culprit was the themerc file of the xfwm theme I was using (Zukitwo)... for some reason the theme could override the move_opacity and resize_opacity settings (along with other settings) when xfwm was loading. I really don't like themes overriding my own settings without telling.
Yes, opacity (like other settings) can be overridden by themes, that's on purpose, but theme designers should refrain from doing this unless strictly necessary. No bug here.
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