The /xlgd roll preview no longer shows its test items in place of real loot rolls. The preview handed its
fake rolls low ids that could collide with real loot-roll ids, so after previewing, a real drop whose id
matched could display a test item instead of the real drop and not roll. The preview now uses ids far
outside the real range and clears each one when its frame closes. Reported by RoadBlock.
Improvements
The "What's New" popup now has a solid background instead of a see-through one.
