Examine source code of Mountain-theme Fuji

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Mountain-theme Fuji",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(38, 38, 38)",
      "toolbar_text": "rgb(240, 240, 240)",
      "frame": "rgb(15, 15, 15)",
      "tab_background_text": "rgb(231, 231, 231)",
      "toolbar_field": "rgb(15, 15, 15)",
      "toolbar_field_text": "rgb(240, 240, 240)",
      "tab_line": "rgb(15, 15, 15)",
      "popup": "rgb(38, 38, 38)",
      "popup_text": "rgb(231, 231, 231)",
      "tab_loading": "rgb(15, 15, 15)"
    }
  }
}