[dyarosla]

The utility may be obvious but the solution is far from it.

The problem is that custom UI is extremely non-trivial. Getting something to work in a way thats even just slightly different from what the default UI does can be a huge undertaking; from reasons having to do with integration, rendering, dataflow, or any other obscure thing.

IMO it’s a dangerous misconception to think that most custom UIs can be implemented via a simple extension- that’s the real reason why there’s so many front end developers.