I’ve had a look around the forum and I cannot find anywhere to suggest improvements to the UI.
I think v2 of the UI is much improved. I’ve been using GUIMods successfully.
The main reason is the number of clicks/presses to alter the state of my inverter.
Several other screens offer a multiple option rather than clicking several times.
Here’s my suggestion of simplifying - and vertical on the route where you click top left.
Down from 4 clicks to 2.
The response to that are the inadvertent system shut downs that occur from accidentally catching the wrong setting, and multiple requests from people for a confirmation step.