It is, though on an E-ink tablet (which I'm frequently using to read, though I limit interactions to a Real Computer ... though those too may use an e-ink monit

It is, though on an E-ink tablet (which I'm frequently using to read, though I limit interactions to a Real Computer ... though those too may use an e-ink monitor these days) the light-on-dark default scheme is exceedingly difficult to read, and cannot be changed when not logged in to a specific Mastodon instance. I've put in a feature request to address this, so far it's not been addressed.