It looks like the output is in a roll template, which means the character sheet probably needs updated to work correctly with dark mode. Which character sheet are you using? If it is a community sheet, you might be able to track down the author and ask if they would update it for dark mode. Edit: I notice the title says T2000, but that doesn't show up with a search on the character sheet github page. Edit, the second: It also doesn't come up when I put T2000 in to filter the sheet drop down on the game creation page.