Examine source code of Rainbow Lines (dark)

{
  "manifest_version": 2,
  "version": "1.0a",
  "name": "Rainbow Lines (dark)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(34, 34, 34, 0.7)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(221, 221, 221)",
      "toolbar_field": "rgba(17, 17, 17, 0.6)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(0, 172, 255)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(221, 221, 221)",
      "popup_highlight": "rgb(63, 159, 255)",
      "popup_highlight_text": "rgb(204, 204, 204)",
      "tab_loading": "rgb(0, 172, 255)",
      "ntp_background": "rgb(17, 17, 17)",
      "ntp_text": "rgb(204, 204, 204)",
      "sidebar": "rgb(27, 40, 45)",
      "sidebar_text": "rgb(221, 221, 221)",
      "sidebar_highlight": "rgb(63, 159, 255)",
      "sidebar_highlight_text": "rgb(204, 204, 204)",
      "button_background_active": "rgba(63, 159, 255, 0.6)",
      "button_background_hover": "rgba(63, 159, 255, 0.3)",
      "icons_attention": "rgb(238, 238, 156)"
    }
  }
}