I've just uploaded 0.12.10-21 now.

The main new feature is the ability to save/load color schemes - currently this is only available by mapping shortcut key(s) though.

The other changes are all around custom menus & toolbar - it'll now read the config files from ~/.FBReader (if found) before falling back to the default ones (from /usr/share/FBReader/default); and I've made changes to the resource files (for internationalisation) to allow any of the actions to appear in the menus (I still need to make these changes for the toolbar though). The plan is to write a customisation program for the menus and toolbar, so you can have whatever you find handy on there.

I've noticed that there's a minor issue with the key mapping - the popup box with the action list is a bit tricky to use. You need to keep your finger/stylus held down, and scroll by moving off the top/bottom of the list.

I've pushed this update for both Diablo and Fremantle.

I still haven't been able to reproduce the hangs people have reported when loading the library though - I've tried with zipped sets of files, but it works fine here. All I can suggest is trying with subsets of your books until you narrow down which one(s) cause the issue. If you can pinpoint a specific file then I'll be happy to look into it further, but otherwise I really don't know what else to try.

There's also still no dictionary support for Diablo (it'll detect QStarDict, but won't work with it). The stardict app works fine in popup mode though - you just need to launch it first, then selecting any word should popup a box with the definition.

The source code changes can be downloaded from here.