Proposal: Change color of update button, when something has changed

[viktorsmari]

Reproduce:

1. Edit Basic camera settings, for example resolution or frame rate.
2. Click 'Confirm and select' This gives you the idea that you have actually saved the settings.
3. The truth is you still have to click 'Update'

Proposal: Make the Update button change color if settings have changed and it needs to be clicked.

[cedricve]

makes sense!