Examine source code of Slate-Blue (Developer)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Slate-Blue (Developer)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(50, 75, 100)",
      "toolbar_text": "rgb(220, 225, 235)",
      "frame": "rgb(100, 125, 150)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(75, 100, 125)",
      "toolbar_field_text": "rgb(225, 225, 250)",
      "tab_line": "rgb(65, 105, 225)",
      "popup": "rgb(50, 75, 100)",
      "popup_text": "rgb(200, 200, 225)",
      "button_background_active": "rgb(100, 135, 155)",
      "button_background_hover": "rgb(75, 105, 135)",
      "icons": "rgb(220, 225, 235)",
      "ntp_background": "rgb(70, 85, 100)",
      "ntp_text": "rgb(200, 200, 225)",
      "tab_loading": "rgb(65, 105, 225)"
    }
  }
}