Dungeon Tileset Pack Vol 0 - Blob Corner Guide
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You have the 16-tile blob BASE (blob_00..15, mask N=1 E=2 S=4 W=8).
Tile id == neighbour mask: bit 1 = wall above is floor, 2 = right, 4 = below,
8 = left. Example: blob_11 (mask 1011) is open only at the top.

The awkward case the full Vol 1 fixes: paint a diagonal-only touch (two floor
areas meeting at one corner pixel) and the 16-tile base shows a void notch -
there is no tile for it. Hand-drawing those corners is the ~2-hour job.
Vol 1 ships all 47 quadrant-composited variants (blob_16..46) so outer
diagonals (the Godot#31003 gap) paint clean, plus 12 wall tiles, 8 32px
props, .tmj + 3x .tsj + Godot .tres + Unity .meta, $19.

Tiled: Add Tileset > floor_sample.tsj, paint on a 16px orthogonal map.
