Not Just Clouds

The boardgame Sub Terra (about being lost in a cave, home to some unhappy monsters) is an excellent cooperative game but the printing on the first edition was black and dark dark blue on black - visible only under strong lighting and preferably UV.  Topical for an underground scenario but quite a pain to play in practice, especially over zoom.

Other owners have recommended going around the edge of the cave artwork with a silver sharpie.  As that's tantamount to potential vandalism I've held off until now.  

Many tiles later, the cave has a silver lining; and it doesn't look too bad at all - thankfully.