[Discussion] Requirements for UI rework

[Wuzzy2]

This issue is to discuss how a possible, proper UI rework could work and what the requirements are.

I suggest that before the UI is reworked again (or the old code is used again), it's better to work out a clear list of requirements and maybe a concrete design and drafts before actually writing any code.

That's to make sure we all sit in the same boat and no ugly surprises happen.

One (technical) requirement I do have is that the new UI must not be done on the master branch. It can be merged back to master once the work is finished, stable and tested.

Note: This issue is blocked by #345.