Item ehnance, fixes on actor sheet

module/models/character.mjs

@@ -20,9 +20,15 @@ export default class OathHammerCharacter extends foundry.abstract.TypeDataModel
       fate: attributeField()
     })
 
-    // Skills: 26 skills each with a rank (0–4). Grit.max = resilience.rank + toughness.rank.
+    // Skills: 26 skills each with a rank (0–4), a bonus/penalty modifier, and color dice.
+    // Total dice = attr rank + skill rank. Modifier = bonus (+) or penalty (-) dice.
+    // Color dice: type (white 4+, red 3+, black 2+) + count of colored dice in the pool.
     const skillField = () => new fields.SchemaField({
-      rank: new fields.NumberField({ ...requiredInteger, initial: 0, min: 0, max: 4 })
+      rank:          new fields.NumberField({ ...requiredInteger, initial: 0, min: 0, max: 4 }),
+      modifier:      new fields.NumberField({ required: true, nullable: false, integer: true, initial: 0 }),
+      colorDiceType: new fields.StringField({ required: true, nullable: false, initial: "white",
+                       choices: { white: "OATHHAMMER.ColorDice.White", red: "OATHHAMMER.ColorDice.Red", black: "OATHHAMMER.ColorDice.Black" } }),
+      colorDice:     new fields.NumberField({ ...requiredInteger, initial: 4, min: 0 }),
     })
     schema.skills = new fields.SchemaField({
       academics:     skillField(),