- ? Gray lines when mouse-on
- Importance, principal component, linkage sorts?
- Make sorting more consistent
- Alphabetic and Orginal as buttons
- pseudo-symmetric sort, when first one axis, then automatically along the other
- Bootstrap or some other nice interface? Or rather keep it bare-bone?
- Easier search for / filtering variables?
- Some listing of previously loaded csv files?
- Some scales, not only -1 to 1 (so it will be usable also for counts)
- How to work with many variables?
- Make first n variables bigger?
- If and how allow more datapoints per pixes (e.g. also Spearman correl)
- How to expand it into a 2d scatter/histogram plot per each correlation?
- Show how much position changed?