Changing the software background color from black to a different color

Is it possible to change the appearance of the software so that it doesn’t have a black background? Looking for a way to have a “high contrast” mode to use when I’m programming outdoors in the daylight before the show starts at dark. With the black background, its extremely difficult to see the buttons.

There is not natively in Onyx. You can try the Windows Accessibility settings for inverted color filters