Default Cwicly block styling settings

It would be useful to have a setting that allows the styling of the default Cwicly blocks to be changed.
For example, it would be useful if there was a “Blocks” tab on the Cwicly settings page, in which a list of Cwicly blocks is displayed, and the default styling could be edited by clicking on the block you want to edit.


Since this is currently being worked on, I have a question.
Would it make sense being able to add (global) classes to the block defaults?

If so, what would be your use cases?