Draws a solidly coloured layout on the given framebuffer at (x, y) within the 
              framebuffer<!-- -->'s current model-view coordinate space.
| framebuffer | A Framebuffer to draw too. | 
| layout | a Layout | 
| x | X coordinate to render the layout at | 
| y | Y coordinate to render the layout at | 
| color | color to use when rendering the layout |