- Improve image support: margins, resizing, storage of image as native format
data (e.g. JPEG) so no lossiness.
- Ensure read-only mode works.
-- Make more efficient, e.g. don't try to draw lines outside the client area;
- don't store whole paragraph in Undo stack if just changing the paragraph's style.
+- Don't store whole paragraph in Undo stack if just changing the paragraph's style.
+- Use binary chop to find character position for (x,y).
- Allow specification of word separators, and whether hyphenation will be done
(language-dependent).