improper initial colorization of ParameterInfo tooltip in razor file

[AdmiralSnyder]

when starting VS, before a .cs file has been opened in the text editor, and only a .razor file, it feels like something hasn't been initialized properly theme-wise:
using the Dark theme, i get this tooltip when calling Edit.ParameterInfo from Ctrl-Shift-Space:

once i change into a .cs file, and pack, it is drawn properly:

[SleepWellPupper]

I can reproduce this issue on VS 2022 17.12.3.

[davidwengier]

This feels like it's probably Roslyn not loading theme information until a view tagger is created (the colours look correct for the light theme), so might need to move to them, but we should investigate first.

[davidwengier]

Investigated this and it seems the LSP client/editor is the responsible party, so logged an internal bug, https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2325891

Will track that issue with this one.

[davidwengier]

That issue has been marked as a duplicate of https://developercommunity.visualstudio.com/t/Signature-help-colors-dont-seem-to-resp/10390495