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Theme automatically changes to match Bing NTP image
Starting with the latest Edge Dev build today (139.0.3394.0) if you have your new tab page set to display the Bing wallpaper, the theme will automatically change to select a colour based on the pictu...
This seems to have been resolved but never acknowledged by Microsoft so I am not sure what happened here.
Same issue here. It does it upon loading the home page when edge is opened. Once I change it back to what I want it will stay that way until I restart Edge and then load the home page.