src/vs/workbench/api/common/extHostTextEditors.ts/ExtHostEditors/createTextEditorDecorationType
class ExtHostEditors:	createTextEditorDecorationType(extension: IExtensionDescription, options: vscode.DecorationRenderOptions): vscode.TextEditorDecorationType {
		return new TextEditorDecorationType(this._proxy, extension, options).value;
	}