Figured bass properties not saved
Changes to offset and color for figured bass elements are lost on save/restore. That's because figured bass inherits from TextBase which sets these up as styled properties, but we never call TextProperties::writeProperties() since most of the text properties actually don't apply. Also, offset and color show as styled in the Inspector, but hitting the set as style button actually sets the default text style and thus potentially affects other elements that inherit this.
Loss of the offset info is critical, or would be if more people actually used figured bass :-)
There are layout issues with figured bass as well - no autoplace, rendered as plain text during edit. There are some improvements with 3.1 - at least style changed take effect now.
Preparing a PR to fix all of this.