src/vs/editor/standalone/browser/toggleHighContrast/toggleHighContrast.ts/ToggleHighContrast/run
class ToggleHighContrast:	public run(accessor: ServicesAccessor, editor: ICodeEditor): void {
		const standaloneThemeService = accessor.get(IStandaloneThemeService);
		const currentTheme = standaloneThemeService.getColorTheme();
		if (isHighContrast(currentTheme.type)) {
			// We must toggle back to the integrator's theme
			standaloneThemeService.setTheme(this._originalThemeName || (isDark(currentTheme.type) ? VS_DARK_THEME_NAME : VS_LIGHT_THEME_NAME));
			this._originalThemeName = null;
		} else {
			standaloneThemeService.setTheme(isDark(currentTheme.type) ? HC_BLACK_THEME_NAME : HC_LIGHT_THEME_NAME);
			this._originalThemeName = currentTheme.themeName;
		}
	}