Examine source code of Pop! Theme for Firefox!

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pop! Theme for Firefox!",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(33, 175, 189)",
      "toolbar_text": "rgb(69, 74, 80)",
      "frame": "rgb(69, 74, 80)",
      "tab_background_text": "rgb(250, 236, 217)",
      "toolbar_field": "rgb(69, 74, 80)",
      "toolbar_field_text": "rgb(255, 247, 236)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(69, 74, 80)",
      "popup_text": "rgb(255, 247, 236)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(255, 255, 255)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(33, 175, 189)",
      "popup_highlight": "rgb(33, 175, 189)",
      "sidebar_border": "rgb(33, 175, 189)",
      "sidebar_highlight_text": "rgb(255, 253, 252)",
      "sidebar_highlight": "rgb(33, 175, 189)",
      "sidebar_text": "rgb(255, 247, 236)",
      "sidebar": "rgb(69, 74, 80)",
      "tab_background_separator": "rgb(255, 255, 255)",
      "tab_selected": "rgb(33, 175, 189)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgb(255, 255, 255)",
      "toolbar_field_border": "rgb(255, 255, 255)",
      "toolbar_field_highlight_text": "rgb(255, 251, 249)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  }
}