Dimming of Unused Variables

[cbleg98]

Feature Request

After getting syntax highlighting all setup and working, I noticed that there was not a way to visually ensure that a variable was used or unused. There are other ways to accomplish this, but it would be nice to get a heads up from the syntax highlighting that a variable is never used. Similar to what happens when using an #ifdef block:

Is this possible? Or is the static analysis to ensure an unused variable beyond the scope of the extension?

[browntarik]

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[github-actions]

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