How to draw white rectangle over black background in Illustrator?
I set up in Illustrator > File > Document Setup .. black color as shown here
I try to create white / colorful (but not back to be able to see) rectangles over the black background.
So I've set some colors.
But I can not see rectangles on the canvas.
How able to see rectangle over black background?
Here are the layer(s)
In short you can't, not with simulate paper color. If you make the paper black then nothing appears because you've already used maximum ink. There are special inks available for this but its not something Illustrator simulates very well.
See this question for a little more information: Printing in black paper?
What you probably want to do is set the default back so you have a white background instead of simulating black paper. Then create a black box the size of your art area and create new objects on top of it (which are the layers Rvervuurt was referring to).