OT: Omnigraffle Style Hash Pattern color picker in other apps
 

This is a little off topic perhaps, so apologies, but I just discovered the hash-pattern color picker in Omnigraffle (having used the Pro version for years). This is the 2nd from the right in the color inspector panel.

This is a) brilliant b) an absolutely ideal addition for Numbers, Pages etc..

Is there any way to take that color picker in other apps - especially numbers? Is there any other software that could add this functionality to other apps?