dotfiles/.setup/managed/calibre/gui.json

{
  "custom_colors_for_color_dialog": [
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ],
    [
      255,
      255,
      255,
      255
    ]
  ]
}