Request: Highlight discovered bloodwort pods while Ctrl button is pressed

[sszigeti]

As a small UX enhancement I'd like discovered/remembered bloodwort pods to get highlighted (in their natural, unshaded color) while I'm pressing Ctrl (or some other button that makes sense), even if the pod is not in line of sight, so that they are spotted more easily when I'm desperately scanning the dungeon, looking for places to get healing.

[davidalayachew]

If we're going down this route, I would expand that to collectibles. Maybe not in this pull request, but definitely something equally valuable imo.