message: Use faster lookup method
diff: @@ -168,7 +168,7 @@ export default class StyleUserSettingsTab extends React.Component {
  <div className="mx_SettingsTab">
  <div className="mx_SettingsTab_heading">{_t("Appearance")}</div>
  {this._renderThemeSection()}
  - {SettingsStore.getValue("feature_font_scaling") ? this._renderFontSection() : null}
  + {SettingsStore.isFeatureEnabled("feature_font_scaling") ? this._renderFontSection() : null}
  </div>
  );
  }
  