gif -> png

Container-API.md

@@ -108,7 +108,7 @@ of the container unless the container has padding specified.
 
 The **container.PlaceWidget** option places the provided widget into the container.
 
-[[/images/container-api/placed_button.gif|placed_button]]
+[[/images/container-api/placed_button.png|placed_button]]
 
 The following code places a button widget inside a container as shown above:
 
@@ -141,7 +141,7 @@ if err != nil {
 The following options can be used to align a widget within the container both
 horizontally and vertically.
 
-[[/images/container-api/aligned_button.gif|aligned_button]]
+[[/images/container-api/aligned_button.png|aligned_button]]
 
 The following code aligns the button widget into the top right corner as shown above:
 
@@ -187,7 +187,7 @@ This section describes container options that specify its style or look.
 
 Containers don't have any borders by default, use one of the following options to instruct Termdash to draw a border around a container.
 
-[[/images/container-api/border_styles.gif|border_styles]]
+[[/images/container-api/border_styles.png|border_styles]]
 
 The following code shows two containers with different border styles as shown above. The right container has the keyboard focus so its border is highlighted.
 
@@ -230,7 +230,7 @@ The **container.FocusedColor** option sets the color of the border when the cont
 
 Containers that have a border can also have a text title displayed in the border. The title isn't visible on a container without border.
 
-[[/images/container-api/border_title.gif|border_title]]
+[[/images/container-api/border_title.png|border_title]]
 
 The following code shows a container with a title in the border that is aligned to the right.