extensions/merge-conflict/src/mergeDecorator.ts/MergeDecorator/configurationUpdated
class MergeDecorator:	configurationUpdated(config: interfaces.IExtensionConfiguration) {
		this.config = config;
		this.registerDecorationTypes(config);

		// Re-apply the decoration
		vscode.window.visibleTextEditors.forEach(e => {
			this.removeDecorations(e);
			this.applyDecorations(e);
		});
	}