(bug): Video 'bulb' control showing as Black when in Dark Mode
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### Summary
As can be seen in the image below, when in dark mode the bulb control shows in black rather than white.
### Steps to reproduce
Look at a video in dark-mode
### Platform information
Cross-platform on Desktop
### App version
Live site
### What is the current *bug* behaviour?
Control shows up as black
### What is the expected *correct* behaviour?
Control colour should match other buttons (white)
### Relevant logs and/or screenshots

### Possible fixes
I'd assume that this is just something missed in the dark mode colour scheme.
issue