I redrew the mark three times before it held up at 20 px — the earlier rounds leaned on a hairline outline that vanished the moment the tile got small, so I dropped the outline and let the silhouette carry it instead.

Here's the short version:

• Mark: One clean geometric trapezoid with a bevelled top edge — an ingot read at a glance
• Palette: Fired-copper accent (#C27C3A) over a cool graphite ground (#191A1C)
• Style: Flat, hard-edged, plenty of breathing room, no lettering or gradients

The mark is already written to Media.bundle/AppMark.markset/mark.png and your next build will pick it up from there. Want me to kick off a build now and confirm the whole target compiles cleanly?