src/vs/workbench/api/browser/mainThreadWorkspace.ts/MainThreadWorkspace/getStatusMessage
class MainThreadWorkspace:	private getStatusMessage(extensionName: string, addCount: number, removeCount: number): string {
		let message: string;

		const wantsToAdd = addCount > 0;
		const wantsToDelete = removeCount > 0;

		// Add Folders
		if (wantsToAdd && !wantsToDelete) {
			if (addCount === 1) {
				message = localize('folderStatusMessageAddSingleFolder', "Extension '{0}' added 1 folder to the workspace", extensionName);
			} else {
				message = localize('folderStatusMessageAddMultipleFolders', "Extension '{0}' added {1} folders to the workspace", extensionName, addCount);
			}
		}

		// Delete Folders
		else if (wantsToDelete && !wantsToAdd) {
			if (removeCount === 1) {
				message = localize('folderStatusMessageRemoveSingleFolder', "Extension '{0}' removed 1 folder from the workspace", extensionName);
			} else {
				message = localize('folderStatusMessageRemoveMultipleFolders', "Extension '{0}' removed {1} folders from the workspace", extensionName, removeCount);
			}
		}

		// Change Folders
		else {
			message = localize('folderStatusChangeFolder', "Extension '{0}' changed folders of the workspace", extensionName);
		}

		return message;
	}