[Request] Gui button states

[DragonD]

It would be incredibly useful to have read-only button states.
Like with the checkbox and radio-button, but than with 3 states:
- Click
- Hover, the mouse cursor is over the button.
- Inactive

For example,
those states can be used to do stuff when the button are being hovered over or to repeat commands as long as the buttons are in a certain state.

[Rseding91]

Hovered state isn't stored in the game (isn't part of game state) and so isn't deterministic. To make it game state would mean we need to send network packets every time you hover over any GUI and that's not something we're looking to ever do.

So, this gets put into the "Won't Implement" section. Sorry.