Deaf Community need to read white letters on the black background as it reduces glare. I tried to change font color on the transparent background but it doesn't work well for me. Black background color on white letters works best for those Deaf vision-impaired. Black background with different color texts sounds more appealing. It is very important to ensure that we can read text easily. Add other feature for the background colors for the Deaf people to choose from, if that's possible?