~jaro/balkon

ref: 0e108aa71ac0cce0b8d819a0528dba4be37c9bf6 balkon/src/Data/Text/ParagraphLayout/Internal/ProtoLine.hs -rw-r--r-- 3.7 KiB
Allow explicit control of box collapsing.
Add extensible filter for invisible lines.
Handle ancestor boxes in rich layout.