Separate highlight group for satellite sign column #94
Description
Is your feature request related to a problem? Please describe.
I use a different background for Normal and XColumn highglight groups in my custom colorscheme. When using gitsigns without overlap = true, the column that is drawn to contain the git signs is a SignColumn, and so I get a column of a different background color in between my normal buffer and the satellite bar.
Describe the solution you'd like
I would really like it if this area had its own highlight group, such as SatelliteSignColumn, that linked to SignColumn by default. Then I could style them independently. This would allow me to keep my gutter's own background color and the extra column for satellite the Normal bg.
Describe alternatives you've considered
I am currently working around this by using overlap = true in the handler for gitsigns, which removes the issue but forces gitsigns to fight for space with the other handlers. EG, if I have a mark close enough to git signs the mark will show on satellite while the gitsigns will not.