Examine source code of Cam's Theme

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "cameronsimbulan@gmail.com"
    }
  },
  "name": "Cam's Theme",
  "description": "A personal dark theme with blue accent",
  "author": "Cameron Simbulan",
  "version": "1.1",
  "theme": {
    "images": {
      "theme_frame": "Firefox Header.png"
    },
    "colors": {
      "tab_background_text": "rgb(249, 249, 250)",
      "icons": "rgb(249, 249, 250, 0.7)",
      "frame": "rgba(55, 55, 55, 1)",
      "popup": "#4a4a4f",
      "popup_text": "rgb(249, 249, 250)",
      "popup_border": "#27272b",
      "tab_line": "#0a84ff",
      "toolbar": "hsl(240, 1%, 20%)",
      "toolbar_bottom_separator": "rgb(32, 32, 32)",
      "toolbar_field": "rgb(71, 71, 73)",
      "toolbar_field_border": "rgba(249, 249, 250, 0.2)",
      "toolbar_field_separator": "#5F6670",
      "toolbar_field_text": "rgb(249, 249, 250)",
      "ntp_background": "#2A2A2E",
      "ntp_text": "rgb(249, 249, 250)",
      "sidebar": "#323234",
      "sidebar_text": "rgb(142, 142, 142)",
      "sidebar_border": "rgba(255, 255, 255, 0.1)"
    }
  }
}