diff --git a/IPython/core/display.py b/IPython/core/display.py
index d2c13e3..ff59576 100644
--- a/IPython/core/display.py
+++ b/IPython/core/display.py
@@ -567,7 +567,7 @@ class JSON(DisplayObject):
             Path to a local file to load the data from.
         expanded : boolean
             Metadata to control whether a JSON display component is expanded.
-        metadata: dict
+        metadata : dict
             Specify extra metadata to attach to the json display object.
         root : str
             The name of the root element of the JSON tree
@@ -651,12 +651,11 @@ class GeoJSON(JSON):
             A URL to download the data from.
         filename : unicode
             Path to a local file to load the data from.
-        metadata: dict
+        metadata : dict
             Specify extra metadata to attach to the json display object.
 
         Examples
         --------
-
         The following will display an interactive map of Mars with a point of
         interest on frontend that do support GeoJSON display.
 
@@ -723,7 +722,7 @@ class Javascript(TextDisplayObject):
             running the source code. The full URLs of the libraries should
             be given. A single Javascript library URL can also be given as a
             string.
-        css: : list or str
+        css : list or str
             A sequence of css files to load before running the source code.
             The full URLs of the css files should be given. A single css URL
             can also be given as a string.
@@ -844,14 +843,13 @@ class Image(DisplayObject):
             from image data.
             For non-embedded images, you can just set the desired display width
             and height directly.
-        unconfined: bool
+        unconfined : bool
             Set unconfined=True to disable max-width confinement of the image.
-        metadata: dict
+        metadata : dict
             Specify extra metadata to attach to the image.
 
         Examples
         --------
-
         embedded image data, works in qtconsole and notebook
         when passed positionally, the first arg can be any of raw image data,
         a URL, or a filename from which to load image data.
@@ -871,6 +869,7 @@ class Image(DisplayObject):
         This will not work in the qtconsole or offline.
 
         >>> Image(url='http://www.google.fr/images/srpr/logo3w.png')
+        <IPython.core.display.Image object>
 
         """
         if isinstance(data, (Path, PurePath)):
@@ -1061,8 +1060,7 @@ class Video(DisplayObject):
             Local files can be displayed with URLs without embedding the content, via::
 
                 Video('./video.mp4')
-
-        mimetype: unicode
+        mimetype : unicode
             Specify the mimetype for embedded videos.
             Default will be guessed from file extension, if available.
         width : int
@@ -1079,7 +1077,6 @@ class Video(DisplayObject):
 
         Examples
         --------
-
         ::
 
             Video('https://archive.org/download/Sita_Sings_the_Blues/Sita_Sings_the_Blues_small.mp4')
@@ -1173,7 +1170,7 @@ def set_matplotlib_formats(*formats, **kwargs):
     ----------
     *formats : strs
         One or more figure formats to enable: 'png', 'retina', 'jpeg', 'svg', 'pdf'.
-    **kwargs :
+    **kwargs
         Keyword args will be relayed to ``figure.canvas.print_figure``.
     """
     from IPython.core.interactiveshell import InteractiveShell