I’m partially color blind so I’m more aware of legibility of colors than your average person.
The color choice for cmdlets (blue) on the background (light gray) is very hard to read with my partial color blindness. There are tools out there on the Internet that will determine if there is enough contrast between 2 colors so that they are legible. There are also tools out there that will render an image as how a person with a particular type of color blindness would see it (or rather a simulation of how they would see it).
Thanks for letting me leave the feedback.