Examine source code of Squid Sisters theme!

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Squid Sisters theme!",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0)",
      "toolbar_text": "rgb(112, 248, 112)",
      "frame": "rgb(21, 18, 32)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0)",
      "toolbar_field_text": "rgb(221, 112, 203)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(233, 121, 212)",
      "button_background_hover": "rgba(92, 182, 96, 0.29)",
      "frame_inactive": "rgb(166, 225, 163)",
      "icons_attention": "rgb(229, 30, 196)",
      "icons": "rgb(219, 111, 201)",
      "ntp_background": "rgb(0, 0, 0)",
      "ntp_text": "rgb(229, 30, 196)",
      "tab_background_separator": "rgb(21, 18, 32)",
      "tab_loading": "rgba(97, 215, 102, 0.29)",
      "tab_text": "rgba(148, 235, 151, 0.59)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_field_border_focus": "rgb(21, 18, 32)",
      "toolbar_field_border": "rgba(77, 55, 183, 0)",
      "toolbar_field_focus": "rgb(21, 18, 32)",
      "toolbar_field_highlight_text": "rgb(234, 137, 203)",
      "toolbar_field_highlight": "rgb(233, 121, 212)",
      "toolbar_field_text_focus": "rgb(125, 217, 113)",
      "toolbar_top_separator": "rgba(114, 98, 193, 0)",
      "toolbar_vertical_separator": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{93f0ef4a-6316-4054-8b61-26e25a6786d4}"
    }
  }
}