What is the Vscode configuration responsible for the check system (deselect in the case) the unused variables yet?

Question

Vscode by default leaves the line of code with less opacity where it has some variable, or import which has not been "called" in the code yet. When I install a Theme I downloaded it disables this function. In the settings.json, which code line is responsible for that function?

I believe it’s in one of the editor’s roles, but I haven’t located which one.

Someone has a solution?

"breadcrumbs.enabled": true,
"editor.renderControlCharacters": false,
"editor.tabSize": 2,
"editor.renderLineHighlight": "line",


"editor.detectIndentation": true,
"editor.snippetSuggestions": "top",
"editor.wordBasedSuggestions": false,
"editor.suggest.localityBonus": true,
"editor.acceptSuggestionOnCommitCharacter": false,
"editor.formatOnPaste": false,
"editor.linkedEditing": true,
"editor.glyphMargin": false,
"editor.suggestSelection": "first",
"vsintellicode.modify.editor.suggestSelection": "automaticallyOverrodeDefaultValue",
"editor.defaultFormatter": "esbenp.prettier-vscode",
"editor.formatOnSave": true,
"editor.lineHeight": 25,
"editor.codeActionsOnSave": {
"source.fixAll.eslint": true,
"source.fixAll": true

I believe you’re in one of these, but I haven’t found the right one... (I don’t know the name of this code identification function yet not called).

Answer 1

Based on this reply from Soen, you can change JSON by adding the following value to "editorUnnecessaryCode.border" within the workbench.colorCustomizations:

"workbench.colorCustomizations": {
    "editorUnnecessaryCode.opacity": "#fff"
}

The above code removes code opacity:

• Disabled (without the code of opacity JSON above)

^{var weather2 unused in the code}

• Activated with the code above:

^{var weather2 unused in the code}

It is possible to add a underline with a certain color for variables not used in the code, using "editorUnnecessaryCode.border": "#fff", for a white color, for example:

^{var weather2 unused in the code}