Hide or Edit Column Headers in Tables
Table header should be editable. Or at least should be able to hide header.
Matthew K commented
The Table Widget already has a sparkline trend. All the other parameters can be turned off, but not the label row, leaving the word TREND just as prominent as the Sparkline. If the header row could also be turned off, the sparkline could then just be used as a Sparkline. Even better if this and all the Table elements were resizeable, so the Sparkline and Average value could be made larger.