Tag's + Power Filter = Highlight tree with different line color
one idea how you can improve your power filter (from my point of view).
Lets assume following:
More or less complicated map with some customer tag's at the lowest-level topics. Now you want to show the "solution" for customer A and customer B. You can use the power filter for that, but it will show the resulting topics without any differentiation. A good solution would be to use a different line colour (down to general topic) to show in a better way your results. Like a "red line" through your map/project.
Using colored tag's (which are shown in the map) will not help from my point of view because showing all tags will "confuse" the map and distract the audience.