I have a 800+ streak, so my icon used to always be orange. It didn’t even change when it “got sick” for everyone last year. Now they seem to have removed that feature and it “gets angry” if it’s past 22.00 and I haven’t done an exercise yet. Which is what I very often do.
Oh interesting, cause I know Nova launcher lets you replace app icons with custom ones. I am a bit surprised it’s been overwritten.