combine "found" and "traced" highlights

[pbrada]

When a node is "traced" via an edge from a related component, the red/blue fill colour overrides completely the orange fill indicating "found" node. So, in the second picture, below, one cannot say which of the red ones match the search ("impl" in this case).

If there was some kind of blend/gradient of the highlight colours, it would help see, for example here, all "impl" nodes which depend on "metadata-service-api".

Search match, before selecting:

and after:

[pbrada]

Just a note: proxy symbols can help a bit, but they do not show the direction of the edge.