Examine source code of Rose Black

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Rose Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-026-829b05416f823e170310e7c826ad1bec.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(36, 36, 36)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(35, 32, 32)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.13)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 111, 131)",
      "popup": "rgb(36, 36, 36)",
      "popup_text": "rgb(222, 222, 222)",
      "icons_attention": "rgb(255, 111, 131)",
      "ntp_background": "rgb(23, 23, 23)",
      "ntp_text": "rgb(255, 255, 255)",
      "tab_background_separator": "rgba(0, 0, 0, 0)",
      "tab_loading": "rgb(255, 111, 131)",
      "toolbar_field_border_focus": "rgba(23, 23, 23, 0)",
      "toolbar_field_focus": "rgba(36, 36, 36, 0.93)",
      "toolbar_field_highlight": "rgb(255, 111, 131)"
    }
  }
}