<!--- Provide a general summary of the issue in the Title above --> The Tag Grommet component does not have the background prop mentioned on the documentation page even though it is available on the component. ### Expected Behavior <!--- Tell us what should happen --> ### Actual Behavior <!--- Tell us what happens instead --> ### URL, screen shot, or Codepen exhibiting the issue <!-- -- Here's a Codesandbox template that serves as a nice starting point -- for demonstrating an issue: https://codesandbox.io/s/m7mml8l0zj --> ### Steps to Reproduce 1. 2. 3. ### Your Environment <!--- Include as many relevant details about the environment you experienced the bug in --> - Grommet version: - Browser Name and version: - Operating System and version (desktop or mobile):