message: feat(decal): use symbol instead of shape
diff: @@ -6,8 +6,7 @@ export type DecalDashArrayY = number | number[];
  export interface DecalObject {
  // 'image', 'triangle', 'diamond', 'pin', 'arrow', 'line', 'rect', 'roundRect', 'square', 'circle'
  - shape?: string
  - image?: ImageLike | string
  + symbol?: string
  // size relative to the dash bounding box; valued from 0 to 1
  symbolSize?: number
  