Pixel HiLight will get upgrade, adding new features
However, it launched with extremely limited functionality, as though Google had built the hardware side and promptly forgotten to think about what it might be able to do.
So far, you can only use it to be notified when a favourite contact is calling you or when you’re interacting with Google Gemini.
The good news is that it looks like Google is about to make HiLight more useful.
Anyron Copeman / Foundry
Code spotted in the Android 17 QPR2 Beta 5 suggests as such, found by Android Authority.
It appears that HiLight will be able to make use of more colours, for starters. Currently it’s limited to only five, but four more will be added. This makes sense as it was already known that the hardware was capable of more colour options.
Currently it has Teal, Yellow, Pink, Purple and White, so you should also be getting (loosely based on the screenshot below) Blue, Red and two shades of Green.