~jaro/balkon

ref: 35a5cc75e3831fa3139ebb43dcf2e0948a76be16 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.