Automatic Dark theme

I tried invert colors in Calc but without luck, because there is only option to put background color as black (fixed), and white letter (fixed), the problem with this is that I can not format changing colors that should be inverted automatic colors.

how do a dark theme as automatic?

PD: please fix conditional format, when I try add new column, the range is fixed as range and not move with the old columns.

:thinking: Using Themes