Currently the Text widget uses a greedy algorithm to apply line-breaks. Words are laid out until they don't fit, and then it continues in the next line.

I suggest there should be an option to choose other, better, line-breaking algorithms:

enum LineBreakAlgorithm { 
      greedy, 
      minimumRaggedness, 
      totalFit, 
      custom 
}

Text({ ...
    List<int> Function(ParagraphInfo) customLineBreakAlgorithm,
    LineBreakAlgorithm lineBreakAlgorithm = LineBreakAlgorithm.greedy})

The LineBreakAlgorithm.minimumRaggedness could implement one of the algorithms shown here:

• https://xxyxyz.org/line-breaking.

The LineBreakAlgorithm.totalfit could implement the total-fit line breaking algorithm, by Donald Knuth and Michael Plass, which is considered the best there is, and is used in TeX and Adobe InDesign:

• http://www.eprg.org/G53DOC/pdfs/knuth-plass-breaking.pdf
• https://github.com/robertknight/tex-linebreak
• https://github.com/baskerville/paragraph-breaker
• https://cs.uwaterloo.ca/~dberry/ATEP/StudentLectures/Ananya.pdf
• https://news.ycombinator.com/item?id=1134342
• https://www.tug.org/TUGboat/tb21-3/tb68fine.pdf
• https://www.students.cs.ubc.ca/~cs-490/2015W2/lectures/Knuth.pdf
• https://fastapi.metacpan.org/source/MWARD/Text-Reflow-1.17/Reflow.pm
• https://github.com/jaroslov/knuth-plass-thoughts/blob/master/plass.cpp (C++)
• https://gist.github.com/allen-chin/fb660a1fc77b00d1bdce25adb567dc0e (Java)
• https://github.com/manifoldco/ansiwrap/blob/master/ansiwrap.go (Go)

The LineBreakAlgorithm.custom would accept a custom algorithm that would return a list of positions (indexes in the text string) where the line-breaks should be applied. This would allow us to do cool stuff like make text into circular or triangular shapes.