Currently, every virtual line gets colored as a whole, I only want the background color to change under the actual virtual text. I assume this is not something in the plugin's code as I saw it working properly in someone's screenshot.
Image: https://0x0.st/HeGk.png
Latest version colours only the text and not the entire line. Maybe you have an older version?
Colours can be customised with
DiagnosticVirtualTextError
,DiagnosticVirtualTextWarn
, etc…