# Setting images

Campaign banners, game system covers, and audio track covers all use the same picker.

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Three things in Grimoire carry an image you choose yourself: a **campaign banner**, a
**game system cover**, and an **audio track cover**. All three use the same dialog, and it
offers three ways to set one:

- **Upload** a file from your device (PNG, JPEG, WebP, or GIF).
- **Paste** an image straight from your clipboard with `Ctrl`/`Cmd`+`V` while the dialog is
  open - handy for a screenshot or something copied from a browser. You can also drag a
  file onto the dialog.
- **Browse** what Grimoire already has: your maps, tokens, book covers, and audio artwork.
  For a campaign banner, the campaign's own uploaded images come first, since that is
  usually where the art you want already lives.

Picking an existing image **copies** it into place rather than pointing at the original, so
the banner or cover keeps working if you later delete the source or reorganise your library.
Browsing only ever shows you images you can already open, and setting a campaign banner
stays a GM/owner action; system and audio covers need the GM or admin role.

**Banner positioning.** A banner fills a wide 2:1 hero, and most images aren't that shape,
so the interesting part can end up cropped out. When the chosen image is taller than the
frame, the dialog lets you **drag the preview** (or use the slider) to pick which slice
stays in view. The position is saved with the campaign, and you can come back and nudge it
later without re-uploading. Removing the banner resets it.

Audio covers are worth calling out: a track's artwork previously came only from a `cover.*`
image sitting next to it in your library or from the file's own embedded tags, neither of
which you could change from inside Grimoire. A cover you set here takes precedence over
both, and removing it hands control back to them.

## See also

- [Campaigns](campaigns.md) - where banners appear
- [Library structure](library-structure.md) - `cover.*` / `folder.*` artwork in your library folders