I’d like to replace those spacers with something more useful, too, but Framework seems to be working to capacity so they are unable to adress such a feature for now.
Sadly, the mechanics for those spacers haven’t been released yet, complicating 3rd party developments in that area, and according to the following official statement, it doesn’t look like this is going to change anytime soon, so in the meantime we need to exercise patience:
Framework support:
While we don’t have immediate plans to release touchpad spacer mechanics, we appreciate your interest and will consider your suggestion for future developments.