Thanks for getting back to us Mox. Changing the colour of the status lights does involve installing an extension into your browser, and the success of that depends on what browser you use.
But before we go further with that, do you think inverting the screen colours would help, as this is easier to do than the extension thing?
If you currently use Windows magnifier for zooming in, you can turn on colour inversion by clicking the gear wheel (options) on the Windows magnifier dialogue box and putting a tick in the colour inversion box.
If you don't use the magnifier, it can be fired up by pressing the Windows key and the '+' key. Then you can turn on the colour inversion as I described above.
If that doesn't work for you Mox, then we'll have to try the browser extension route.
The browser extension is also able to invert the PLAY NOW area colour by applying a filter to it.