~jaro/balkon

ref: 4ebfe390a1e8b16f42c6bdb51c135c895a7ce022 balkon/.golden/richParagraphLayout/nestedBoxes.golden -rw-r--r-- 7.9 KiB 
Describe box edges with extensible type.

Handle ancestor boxes in rich layout.

Add ancestor boxes to interface.

Test Rich layout.