~jaro/balkon

ref: 75e3b64a230f131fcde0b12604a187aef4ee2853 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.