hius07

Makes sense imho. Waiting for more opinions to implement.

Since the color is constant within a page, it can be calculated outside of the loop on each box.

> people will want different color per highlight In view of this in the future, the general setting should be done as a submenu, not RadioButtonWidget, similar to highlight style....

BTW, we do not have a feature "apply default style to all highlights in the book", it might be useful.

If you someday decide to encolour your RadioButtonTable, it is done in https://github.com/koreader/koreader/blob/6e0880941919d7144fccfb7ada92ed9dac99fc12/frontend/ui/widget/checkbutton.lua#L74 passed through https://github.com/koreader/koreader/blob/6e0880941919d7144fccfb7ada92ed9dac99fc12/frontend/ui/widget/radiobuttontable.lua#L61

Don't you see the trend? The color is spreading on eink. Why not to encourage and support those who wants to and can improve?

> Because I'm impressed, really.

We can broadcast `InvalidateMetadataCache` event when deleting a file.

Another way: swipe north the upper menu.

Maybe AutoDim? https://github.com/koreader/koreader/pull/9028