~jaro/balkon

ref: a4ff73944e8ba02f82dbfa8c7aaff20ac438ba2c balkon/src/Data d---------
Use CSS3 terminology for fragments and containing block.
Avoid reimplementing Data.Text.Lazy.fromStrict.
Implement "plain" interface.
Use Rect in "plain" interface.
Create "plain" interface.
Add module for working with rectangle coordinates.
Separate modules.
WIP version with WIP interface.