Examine source code of Aesthetic peach grid

{
  "name": "Aesthetic peach grid",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "firefoxtheme_grid.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 145, 112, 1)",
      "toolbar": "rgba(255, 224, 243, 0.6)",
      "bookmark_text": "rgba(17, 117, 52, 1)",
      "toolbar_field_text": "rgba(255, 145, 112, 1)",
      "tab_line": "rgba(5, 84, 26, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7cfc0168-a980-475d-9ff3-794a1c7ac7f9}"
    }
  }
}