Number of scrollback lines to keep around. You can scroll back in the terminal by this number of lines; lines that don’t fit in the scrollback are discarded. If scrollback_unlimited is true, this value is ignored.
Custom color of the background of the terminal’s highlight, as a color specification (can be HTML-style hex digits, or a color name such as “red”). This is ignored if highlight-colors-set is false.
If true, scrollback lines will never be discarded. The scrollback history is stored on disk temporarily, so this may cause the system to run out of disk space if there is a lot of output to the terminal.
Custom color for the foreground of the text character at the terminal’s highlight position, as a color specification (can be HTML-style hex digits, or a color name such as “red”). This is ignored if highlight-colors-set is false.