message: Fix `offset` calculation in `image::Atlas`
diff: @@ -123,7 +123,7 @@ impl Atlas {
  Entry::Fragmented { fragments, .. } => {
  for fragment in fragments {
  let (x, y) = fragment.position;
  - let offset = (y * padded_width as u32 + x) as usize * 4;
  + let offset = (y * padded_width as u32 + 4 * x) as usize;
  self.upload_allocation(
  &buffer,
  