Describe mocha as compatible with older plugin checkouts

test/shell.d/theme-neovim-colorscheme-test.sh

@@ -2,14 +2,13 @@
 
 source "$(dirname "${BASH_SOURCE[0]}")/base-test.sh"
 
-# The pinned catppuccin/nvim plugin no longer ships a colorscheme named
-# catppuccin-nvim (its colors/ holds catppuccin{,-latte,-frappe,-macchiato,-mocha}).
-# The base catppuccin theme is the mocha flavour, mirroring how
-# catppuccin-latte uses its flavour-qualified name (#12721).
+# The catppuccin-nvim colorscheme name only exists in newer plugin checkouts
+# (added upstream in March 2026); catppuccin-mocha loads on old and new ones
+# alike, so the stock theme uses the flavour name (#12721).
 if matches=$(grep -rn 'catppuccin-nvim' "$ROOT/themes/"); then
-  fail "stock themes reference no removed catppuccin colorscheme" "$matches"
+  fail "stock themes avoid the newer-only catppuccin colorscheme name" "$matches"
 fi
-pass "stock themes reference no removed catppuccin colorscheme"
+pass "stock themes avoid the newer-only catppuccin colorscheme name"
 
 grep -Fq 'colorscheme = "catppuccin-mocha"' "$ROOT/themes/catppuccin/neovim.lua" ||
   fail "catppuccin theme uses its flavour colorscheme"