Verse of the day with picture backgrounds, shareable image, and study covers

- Verse of the day: card over a picture (a different one each day, or chosen),
  12 drawn scenes plus photos from public/verse-backgrounds, and "Share as
  image" (also on the Reader's verse panel) that saves or shares a PNG with the
  same background, a theme look, or a photo from the device
- Study cards get a cover banner named for the book, coloured by kind of book
- Outline "Build from my notes": abbreviations like "A.D. 63." no longer end a
  sentence

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/verse-backgrounds/README.txt

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+Photos for behind the verse of the day and the "Share as image" pictures.
+
+1. Drop landscape photos (about 1200px wide or larger, .jpg/.png/.webp) into this folder.
+2. List them in index.json, for example:
+
+   [
+     { "file": "mountain-lake.jpg", "name": "Mountain lake" },
+     { "file": "wheat.jpg", "name": "Wheat" }
+   ]
+
+   (A plain list of file names also works: ["mountain-lake.jpg", "wheat.jpg"].)
+
+They then appear under "Your photos" in the background menus, and "Picture of the day" rotates through them
+along with the built-in scenes. With no index.json the built-in scenes are used. Free sources: pixabay.com,
+unsplash.com. Check each photo's licence before sharing pictures made from it.

public/verse-backgrounds/index.json

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+[]