src/vs/workbench/contrib/codeEditor/browser/accessibility/accessibility.ts/ToggleScreenReaderMode/run
class ToggleScreenReaderMode:	async run(accessor: ServicesAccessor): Promise<void> {
		const configurationService = accessor.get(IConfigurationService);
		const value = configurationService.getValue('editor.accessibilitySupport');
		configurationService.updateValue('editor.accessibilitySupport', value === 'on' ? 'off' : 'on');
	}