Examine source code of Minimalist and clean

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Minimalist and clean",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(30, 30, 30)",
      "toolbar_text": "rgb(216, 216, 216)",
      "frame": "rgb(107, 79, 190)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(41, 41, 73)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(215, 43, 195, 0)",
      "popup": "rgb(30, 30, 30)",
      "popup_text": "rgb(216, 216, 216)",
      "button_background_active": "rgb(107, 79, 190)",
      "button_background_hover": "rgba(107, 79, 190, 0.63)",
      "icons": "rgb(252, 252, 252)",
      "ntp_background": "rgb(30, 30, 30)",
      "popup_border": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(41, 41, 73, 0)",
      "sidebar_border": "rgba(212, 57, 191, 0)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0)",
      "toolbar_field_border": "rgba(182, 143, 143, 0)",
      "toolbar_field_highlight_text": "rgba(182, 143, 143, 0)",
      "toolbar_field_separator": "rgba(182, 143, 143, 0)",
      "toolbar_top_separator": "rgba(182, 143, 143, 0)",
      "toolbar_vertical_separator": "rgba(30, 30, 30, 0)",
      "tab_loading": "rgba(215, 43, 195, 0)"
    }
  }
}