Ref T7055. Apparently we just never had one? I feel like I'm crazy. But I can't find any trace in the logs.
I'm actually not 100% sold on this being better because it's a color glyph on OSX and those feel a little out of place / tacky to me compared to the black-and-white ones. So I'd be fine with just leaving it off, too. Clearly not important if no one noticed it until I caught it in T7055.