Example 1: Get color
Example 2: Change color
Example 3: Change color and border size
Example 4: Get content height
Example 5: Change the height
Example 6: Get content width
Example 7: Change the width width
Example 8: Get the inner height
Example 9: Get the inner width
Example 10: Get the outer height
Example 11: Get the outer height with margins
Example 12: Get the outer width
Example 13: Get the outer width with margins
Example 14: Get the height of the window
Example 15: Get the width of the window