Hi Jonson,
to cumulate this:
NON-SDK:
- css stayling with "someclass:hover {}" is another one solution
- in standard you can find als IMAGE component, this has als "hover image property". then on click you can change also the real image - from Ux this can be also styled as a button (border etc)
SDK:
- give me 2 hours for a toggle button.
- done: Design Studio SDK: Toggle Button Component