#1372 - subchart styling: background + selection box + left/right handles to enlarge
           - feature - visible items in the viewport are colored in the subchart
Merge pull request #1505 from OCHA-DAP/arti-sprint-35

#1372 - subchart styling: background + selection box + left/right handle...
Merge pull request #1506 from OCHA-DAP/dev

Merge DEV into STAG