What does the red text on the black background mean on the billboard?

Black background with white characters or black background with red characters and white background with red characters and sunspots are acceptable.

Wedding celebrations with red background and yellow characters are very good
Mementos to the dead with white characters on a black background are also very good
It is also very good to complain about injustice and with black characters on a white background Good
It is better to demonstrate and protest with red letters on a white background

It is eye-catching to attract attention. It is appropriate for the occasion. It must be cool to only write two big words on the whole sign

Visually speaking, white letters on a red background and red letters on a white background are easiest to see clearly
You can consider using blue next to you. Red or black background with gold letters (I don’t know what your business is, this does not apply to all businesses)
Or you can consider using more than two colors of design to make the visual impact stronger
You I don’t quite understand what the billboard means.
Is it an ordinary signboard or the kind with advertising creativity?
If there is advertising creativity in it, it must be combined with the creative content of the advertisement
You can find a specialized design company or advertising company to design one for you
Also One thing is that the text font of your billboard is best to be different from other businesses and not use the same font