It appears that the official chrome webstore extension by Rob W is outdated. It was last updated in 2019. 

gulp.task(
  "lint-chromium",
  gulp.series(
    function scriptingLintChromium() {
      const defines = builder.merge(DEFINES, {
        CHROME: true,
        SKIP_BABEL: false,
        TESTING: false,
      });
      return buildDefaultPreferences(defines, "lint-chromium/");
    },
    function runLintChromium(done) {
      console.log();
      console.log("### Checking supplemental Chromium files");
      if (
        !checkChromePreferencesFile(
          "extensions/chromium/preferences_schema.json",
          getDefaultPreferences("lint-chromium/")
        )
      ) {
        done(new Error("chromium/preferences_schema is not in sync."));
        return;
      }
      done();
    }
  )
);
gulp.task("dev-css", function createDevCSS() {
  console.log();
  console.log("### Building development CSS");