High-res textures take on the pixel-art colours; treasury and mushroom garden closer to the pixel art

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

art/generated/textures/all/PROMPTS.md

@@ -45,9 +45,9 @@ Side view, standing on the bottom edge of the image and filling most of its widt
 | steel | WALL | A wall of dark riveted iron plates with rows of round rivets along the seams, a little rust and soot. |
 | obsidian | STYLE | Cooled lava rock: black and very dark purple volcanic glass with smooth glassy facets and a few thin faintly glowing orange seams. |
 | face | WALL | A cut vertical face of packed brown earth with small stones and roots, slightly uneven. |
-| treasury | STYLE | The floor of a treasure vault: polished dark stone flagstones with inlaid golden bands and a few scattered gold coins. |
+| treasury | STYLE | The floor of a treasure vault: a checkerboard of square floor tiles in warm golden-ochre and darker bronze-brown, each tile slightly bevelled and worn, a few small gold coins lying in some joints. |
 | lair | STYLE | A monster lair floor: packed earth covered with scattered straw, old furs, a few bones and dirty rags. |
-| farm | STYLE | A mushroom garden floor: dark moist soil in tilled furrows with tiny sprouting mushrooms and spores. |
+| farm | STYLE | A mushroom garden floor: brown moist soil covered with large irregular patches of bright green moss, a few tiny pale mushrooms growing in the moss. |
 | training | STYLE | A training hall floor: worn wooden planks with sawdust, scuff marks and a few dark stains. |
 | library | STYLE | A repeating herringbone parquet of dark wooden boards, worn, with a few faint scratched arcane symbols and ink stains - no carpet, no large motif, no border. |
 | torture | STYLE | A torture chamber floor: dark stained flagstones with rusty iron drain grates and a few chain links. |
@@ -86,3 +86,12 @@ Side view, standing on the bottom edge of the image and filling most of its widt
 
 The reinforced wall of the pixel-art atlas is drawn in code (`T_REINF` in `gen_atlas`: courses of
 6, 5 and 5 pixels cut into blocks of 5-9 pixels).
+
+## Closer to the pixel art (2026-11-07)
+
+- Treasury and mushroom garden were made again (`seed: 4302`, the prompts in the table above)
+  after the pixel-art cells: a golden checkerboard and brown soil with green moss; the first
+  pictures are in `old/`.
+- The game moves the colours of every generated picture most of the way to those of the 16x16
+  cells it replaces (mean and contrast per channel, `match_colors` in `src/gfx.rs`), so both
+  styles keep the same colours.