Support chinese variant, QQ object in launcher and some code optimizations

worthless/classes/launcher/background.py

@@ -3,7 +3,7 @@ class Background:
 
     Note that the `background` variable is an url to the background image,
     while the `url` variable contains an empty string, so it seems that the
-    `url` and `icon` variables are used by the official launcher itself.
+    `url` and `icon` variables are not used by the official launcher itself.
 
     Also, the launcher background checksum is using an algorithm which I
     haven't found out yet, so you better not rely on it but instead rely
@@ -16,8 +16,9 @@ class Background:
     - :class:`str` url: The url variable.
     - :class:`str` version: The launcher background version.
     - :class:`str` bg_checksum: The launcher background checksum.
-    - :class:`dict` raw: The launcher background raw information in dict.
+    - :class:`dict` raw: The launcher background raw information.
     """
+
     def __init__(self, background, icon, url, version, bg_checksum, raw):
         """Inits the launcher background class"""
         self.background = background
@@ -31,4 +32,4 @@ class Background:
     def from_dict(data) -> 'Background':
         """Creates a launcher background from a dictionary."""
         return Background(data["background"], data["icon"], data["url"],
-                                  data["version"], data["bg_checksum"], data)
+                          data["version"], data["bg_checksum"], data)