Fade-out of unused variables or parameters and dark theme

_This issue has been moved from [a ticket on Developer Community](https://developercommunity.visualstudio.com/t/Fade-out-of-unused-variables-or-paramete/10031816)._

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When using the dark theme, the fade effect of the unused parameters or identifiers is too low and there is only a small difference with the other identifiers, even though I set the background color to black and the text to white.

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### Original Comments

#### Feedback Bot on 5/6/2022, 03:29 AM:

(private comment, text removed)
#### Feedback Bot on 5/6/2022, 09:27 PM:

(private comment, text removed)
#### Francesco Tovagliari on 5/7/2022, 09:33 AM:

(private comment, text removed)
#### Feedback Bot on 5/13/2022, 09:24 PM:

(private comment, text removed)

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### Original Solutions

#### Joey Robichaud [MSFT] solved on 5/9/2022, 07:24 PM, 0 votes:

We moved this issue to a relevant GitHub project. Please comment and track it at this URL: https://github.com/dotnet/roslyn/issues/61185