Not so Dark theme

Is there something that can be edited or is an option coming to enable a more contrasting but less harsh theme to MS365 apps and Windows? As I’ve got older I need to turn down brightness because the extremes in the current themes, White, Black, Dark Grey,  are too harsh, but that doesn’t quite achieve what I need. A light grey, giving better contrast than white for those that need it but not so harsh and depressing as the dark versions, would be ideal. We’re lacking options at the light end of the spectrum