PSRule-vscode/syntaxes/yaml-comments.json

{
  "scopeName": "PSRule-yaml-comments",
  "injectionSelector": "L:comment.line.number-sign.yaml",
  "patterns": [
    {
      "include": "#synopsis-comment"
    }
  ],
  "repository": {
    "synopsis-comment": {
      "match": "Synopsis:",
      "name": "keyword.operator.documentation.powershell"
    }
  }
}