~jaro/balkon

ref: 2db7d32290bc20ee29469a9edf0d64d3dbad93c9 balkon/src/Data/Text/ParagraphLayout/Internal/Tree.hs -rw-r--r-- 2.9 KiB 
Store direction in ResolvedBox.

Use ResolvedBox when flattening trees.

Define tree for structuring paragraph content.