The scarlet letter on the black background is more eye-catching, with a sense of atmosphere and clearer fonts.

In the case of a black background

Highlight it in red.

White characters on a black background are also good, and the fonts are clear and concise, which makes people feel elegant and concise.

"White" is the best. I believe everyone knows that there is a saying called "black and white match"!

Black words on a white background are more concise and clear.

Give people a comfortable feeling, at a glance.