attributes: @Tint(SLOT) on a colour field, into the schema - SLOT must be a constant that exists (a row of the program's tint-slot registry); reseeded

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

examples/lang/attributes.ludic

@@ -24,7 +24,7 @@ program Attributes {
     @Range(0, 20.5) @Unit("kg") weight: float = 1.0
     @Asset("gltf")
     model: string = ""                         # its model, under assets/kit
-    @Color tint: int = 16777215
+    @Color @Tint(VD_STORE) tint: int = 16777215
     @OneOf(VD_) stocked_at: int = VD_STORE
     @Node(model) grip: string = "grip"        # where a hand holds it, a node in that model
     @Derived reach: float = 0.0                # worked out at boot from the model

examples/rejected/node_bad.ludic

@@ -1,6 +1,7 @@
 # attributes: @Node / @Clip name a field of its record that names a glTF - `handle` names no field,
 # `tag` is a plain string, `kit` refers to a registry whose record has two models - and a listing
-# @OneOf names constants that exist, which KITS_NONE is not (all five are reported)
+# @OneOf and @Tint name constants that exist, which KITS_NONE and TSLOT_NONE are not (all six are
+# reported)
 program R {
   property Kit {
     key: string = ""
@@ -16,6 +17,7 @@ program R {
     @Node(kit) hook: string = ""
     @Clip(tag) swing: string = ""
     @OneOf(KITS_COUNT, KITS_NONE) which: int = 0
+    @Tint(TSLOT_NONE) shade: int = 0
   }
   entry { print(KITS_COUNT) }
 }