highlight applied filter
With multiple slicers on a report page it is currently not possible to quickly see which slicers have a value selected.
It would be great to have the ability to change the color of the slicer background or the background color of the slicer items. (Default state, Selected state)
This would help the consumer of the report to very quickly see which filters have been applied and which still can be applied.
Daniel Davis commented
Check out the new Filter Pane experience. It does this nicely, and now that you can sort and rename cards, it's much easier to work with.
Of course some slicers (such as the Time Brush, or Chiclets) but you should need far less of these if using the Filter Pane in conjunction.