Updated some formatting

Updated formatting for object

docs/objects/Object/setBackground.md

@@ -1,16 +1,27 @@
-## setBackground
-Changes the object background color, if you set the value to false the background wont be visible. For example you could see trough a frame.
-#### Parameters: 
-1. `number|color` Background color
+# Object
+
+## setBackground
+
+Changes the object background color, if you set the value to false the background wont be visible. For example you could see trough a frame.
+
+### Parameters
+
+1. `number|color` Background color
+1. `char` background symbol you want to draw (optional)
+1. `number|color` Background symbol color (optional)
+
+### Returns
 
-#### Returns:
 1. `object` The object in use
 
-#### Usage:
-* Creates a frame, and sets its background color to `colors.gray`
+### Usage
+
+* Creates a frame, and sets its background color to `colors.gray`, also sets a background symbol with color black.
+
 ```lua
-local mainFrame = basalt.createFrame():setBackground(colors.gray)
+local mainFrame = basalt.createFrame():setBackground(colors.gray, "#", colors.black)
 ```
+
 ```xml
 <button bg="gray" />
-```
+```