Bypass default callback if required.
Merge branch 'master' into plotting
Implement the plugins interface.
get functions for labels and title
Work on ScanWindow replacement
Keep improving
Improve color handling.
Better active curve handling.
Add label to xMarker
Hover over marker.
Fit and ROI icons handling.
ROI support started.
ROI working
ROI disabled by default.
Merge branch 'plotting'