The WindowManager marks taskbar and desktop icon bitmaps as volatile. This causes those icons to disappear until they are repainted when the system purges pages.
Before purging:
After purging:
As you can see, this causes a multitude of icons in the taskbar to disappear. When you hover over them, they are repainted, which restores the bitmaps. Here you can see an example of this.
While I understand the necessity to cut down on memory usage as much as possible when purging, this seems to be a detriment to the user experience if purging pages becomes necessary. If it's not plausible to completely retain these pages, is there a way that the images could be downscaled to fit in a smaller bitmap, which would still alleviate some memory usage (theoretically)?
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