* Regression Analysis: Use only positive values for Power Fit regression.
* Add visible tag short cut for changning curve color.
* #10214 Ensemble Curve Set: Fix color mode text.
* #10214 Ensemble: Switch P10 and P90 symbols to point towards mean.
* Cache hit rects for tree item tags.
* #10214 Ensemble curve set: allow reordering with tree view tag
* #10214 Keep curve legend text when ensemble curves are hidden