One more list comprehension

Cannot amend previous commit as its already pushed.
TODO in future: do not push right away.
Colors

Use pango markup to color the treeview in window
Display box names
Truncate long arrays

Arrays longer than 10 items will be truncated to three items
each from start and end with an ellipsis between them.
Use -e option to forcefully expand such long arrays.
Handle CompactSampleSizeBox(stz2)