"recommended" key for options #39
Description
What is your desired feature/change?
Add a "recommended" key for options that provides a list of recommended values to the user.
Why should this be added?
For certain options, it may greatly help to provide common values. For instance, background-size values could be "cover", "100% auto", etc. etc.
Additional notes
Could be an array.
Perhaps add recommended values to certain common CSS properties automatically, without JSON specification.