Hi Mark, are you using a custom theme or copied the theme file into the project? The change was a setting in the theme.
See this: http://demo.wisej.com/apps/userdesktop
It uses this image:
It scales well in the taskbar.
I noticed a different problem with the icon in the title of the window with some themes due to scaling.
Let me know if the same sample is what you need to do.
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