Examine source code of Ghibli 1920x150

{
  "name": "Ghibli 1920x150",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Ghibli.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(255, 255, 255, 0.43)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.53)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 255, 255, 0.67)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c915a370-a0cb-4eb9-9e79-ce299111bdce}"
    }
  }
}