Examine source code of Grassy Greens

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Grassy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(88, 220, 91, 0.36)",
      "toolbar_text": "rgba(4, 62, 11, 0.7)",
      "frame": "rgb(175, 223, 176)",
      "tab_background_text": "rgb(0, 187, 255)",
      "toolbar_field": "rgba(88, 220, 91, 0.36)",
      "toolbar_field_text": "rgb(26, 39, 129)",
      "tab_line": "rgb(0, 183, 255)",
      "popup": "rgba(88, 220, 91, 0.36)",
      "popup_text": "rgb(26, 39, 129)",
      "popup_border": "rgba(26, 129, 38, 0.7)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_separator": "rgb(0, 183, 255)",
      "tab_loading": "rgb(0, 183, 255)"
    }
  }
}