message: fixed clearOverpaint
diff: @@ -24,7 +24,7 @@ export function applyOverpaintColor(array: Uint8Array, start: number, end: numbe
  }
  export function clearOverpaint(array: Uint8Array, start: number, end: number) {
  - array.fill(0, start, end)
  + array.fill(0, start * 4, end * 4)
  }
  export function createOverpaint(count: number, overpaintData?: OverpaintData): OverpaintData {
  