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Ombra

StyleShadowContent → toBoxShadow(darkMode). View : uuid_shadow ViewDataString. Shadow suit le borderRadius du decoration.

{
  "uuid": "019e8f76-8da2-7669-9fcb-6162546103e2",
  "name": "BackCard",
  "shadows": [
    {
      "color": { "dark": "#9de300ec", "light": "#3cd68cf2" },
      "alpha": -1,
      "offset_x": 0,
      "offset_y": 0,
      "blur": 6,
      "spread": 0
    },
    {
      "color": { "dark": "#91003f9b", "light": "#2414396f" },
      "alpha": -1,
      "offset_x": 5,
      "offset_y": 5,
      "blur": 15,
      "spread": 0
    }
  ]
}

Clé	Sens
`alpha`	`-1` = garder l’alpha du hex. Sinon `color.withAlpha(alpha)`
`offset_x` `offset_y`	Offset
`blur`	blurRadius
`spread`	spreadRadius

"uuid_shadow": { "l": { "i": "019e8f76-8da2-7669-9fcb-6162546103e2" } }

Ombre nulle live "trasparent" uuid 019e92f9-fd2f-7caf-b748-fa784073e752 (alpha 00). Préférer omettre uuid_shadow ({}) si pas d’ombre.

Piège. Radius 0 = ombre rect. Le helper s’appelle buildGradient (nom historique) mais retourne List<BoxShadow>.