[tomsem]

I use them sparingly, but I do use them. I Hid the default themes and currently have 3: Bookerly-Portrait, Bookerly-Landscape, and one that uses a Custom font. I rarely switch, but sometimes I accidentally use pinch/spread gesture and change text size. Or I muck around with settings and just want to get back to a known state. Themes are good for that.

I wish there were a way to ‘pin’ a theme to a book so you could have different themes in effect for different books, but it already is not that easy to understand how it works.

For example, on the Manage page display theme page, what do the UPDATE buttons do? I’m sure I figured it out at one point but set these up weeks ago. I think it overwrites the theme with the current font/page/reading settings, potentially redefining the entire theme, without knowing exactly which settings you are overwriting. There should be a ‘confirm these changes’ dialog that tells you which properties you are changing. But there is not.

It is a viable feature, but is in need of a few improvements. I think we may never see any, however (hope I am wrong).