Colors of the Rainbow

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "version": "1.0.3",
  "name": "Colors of the Rainbow",
  "description": "Original theme \"Color of Rainbow\" by Harald on Firefox\nPorted to Chrome by CrazyCrisco",
  "theme": {
    "images": {
      "theme_toolbar": "colors-of-the-rainbow.png",
      "theme_frame": "colors-of-the-rainbow.png",
      "theme_ntp_background": "colors-of-the-rainbow.png",
      "theme_frame_overlay": "colors-of-the-rainbow.png"
    },
    "colors": {},
    "properties": {
      "ntp_background_repeat": "repeat",
      "ntp_background_alignment": "left"
    }
  }
}