Disabled colour the DataGrid uses when dark themed looks wrong.

[Omsad]

Is your feature request related to a problem? Please describe.
When explicitly disabling the data grid, the colour used on a dark theme looks incorrect. Currently it will make the grid lighter which is pretty jarring.

Describe the solution you'd like
Instead of using the same colour, #8CFFFFFF, as the light theme. I'd suggest using #8C000000 to making it darker instead.

Describe alternatives you've considered
None.

Additional context
None.