spring-tools/vscode-extensions/vscode-spring-boot/properties-support/spring-factories.tmLanguage.json

{
    "name": "Spring Factories",
    "scopeName": "source.spring-factories",
    "patterns": [
      {
        "comment": "source.java-properties is defined in vscode-java",
        "include": "source.java-properties"
      }
    ]
  }