Carbon Grid wallpaper composed for the iPhone Duo cover screen
Cover screen5.4-inch · 1398 × 2034 · 131 KB
Download cover
Carbon Grid wallpaper composed for the iPhone Duo inner screen
Inner screen7.6-inch · 1878 × 2670 · 205 KB
Download inner

Free for personal use. Drawn by Duo Themes — no stock photography, no third-party artwork.

About this pair

Carbon Grid lays a faint square grid over a very dark blue‑black field. The lines are barely there — enough to give the screen a sense of surface, not enough to read as a pattern from arm's length.

The grid cell size is set in physical units, so a square is the same size on the cover screen as on the inner screen. This is the wallpaper where that choice is most visible: a scaled grid would have obviously larger cells on the bigger panel, and the two screens would stop looking like one device.

The darkest wallpaper in the set, and the best one for battery on an OLED panel. Pair it with a single accent colour in your widgets and let everything else stay neutral.

Works well with

  • Maximum battery saving on OLED
  • Single-accent-colour setups
  • Dark Mode

Setting it up

  1. Download both files above.
  2. Fold the phone closed, then Settings → Wallpaper → Add New Wallpaper → Photos and choose the cover file.
  3. Unfold and repeat with the inner file.

If it ends up cropped or zoomed, this is usually why.

← All 16 wallpaper pairs