                 return category.label
             }
         }
-        func child(streamsOfCategories: [FeedlyKit.Category:[Stream]], index: Int) -> AnyObject {
+        func child(streamListDic: [FeedlyKit.Category:[Stream]], index: Int) -> AnyObject {
             switch self {
             case .All:            return []
             case .Pocket:         return []
             case .Twitter:        return []
             case .FeedlyCategory(let category):
-                if let streams = streamsOfCategories[category] { return streams[index] }
+                if let streams = streamListDic[category] { return streams[index] }
                 else                                           { return [] }
             }
         }
-        func numOfChild(streamsOfCategories: [FeedlyKit.Category:[Stream]]) -> Int {
+        func numOfChild(streamListDic: [FeedlyKit.Category:[Stream]]) -> Int {
             switch self {
             case .All:            return 0
             case .Pocket:         return 0
             case .Twitter:        return 0
             case .FeedlyCategory(let category):
-                if let streams = streamsOfCategories[category] { return streams.count }
+                if let streams = streamListDic[category] { return streams.count }
                 else                                           { return 0 }
             }
         }
     }
 
-    var treeView:            RATreeView?
-    var HUD:                 MBProgressHUD!
-    var sections:            [Section]                      = []
-    var streamsOfCategories: [FeedlyKit.Category: [Stream]] = [:]
+    var treeView:      RATreeView?
+    var HUD:           MBProgressHUD!
+    var sections:      [Section]                      = []
+    var streamListDic: [FeedlyKit.Category: [Stream]] = [:]
 
     var apiClient:   FeedlyAPIClient  { get { return FeedlyAPIClient.sharedInstance }}
     var appDelegate: AppDelegate      { get { return UIApplication.sharedApplication().delegate as AppDelegate }}

            cell.textLabel?.text = "Nothing"
        } else if let index = item as? Int {
            let section = sections[index]
            let num     = section.numOfChild(streamsOfCategories)
            if num > 0 {
                cell.textLabel?.text = "\(section.title) (\(section.numOfChild(streamsOfCategories)))"
            } else {
                cell.textLabel?.text = "\(section.title)"
            }

        case .Twitter:
            break
        case .FeedlyCategory(let category):
            if var streams = streamListDic[category] {
                if let subscription = item as? Subscription {
                    var index: Int?
                    for i in 0..<streams.count {
