Often, when you create a group, you want to set something up in the background. For example, a background color.
For example, take the following button:
A button like this looks similar to this in Sketch:
To set the semantics for Kindling to know what the background is, simply add
.*background to the background rectangles.
Check out https://parabeac.com/roadmap to see what we're currently working on and help us add the features that you want!