Examine source code of Ocean Minimalistic

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Ocean",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(35, 35, 37)",
      "toolbar_field": "rgb(16, 16, 18)",
      "toolbar_field_text": "rgb(220, 220, 233)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(12, 12, 13)",
      "popup_text": "rgb(220, 220, 233)",
      "tab_loading": "rgb(0, 0, 0)",
      "bookmark_text": "rgb(220, 220, 233)",
      "frame": "rgb(12, 12, 13)",
      "tab_background_text": "rgb(87, 94, 95)"
    }
  }
}