Examine source code of OLED Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "OLED Blue",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(28, 27, 34)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(15, 15, 15)",
      "toolbar_field_text": "rgb(196, 212, 236)",
      "tab_line": "rgb(6, 107, 255)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "frame_inactive": "rgb(35, 36, 36)",
      "icons": "rgb(255, 255, 255)",
      "popup_border": "rgb(6, 107, 255)",
      "sidebar_border": "rgb(6, 107, 255)",
      "tab_loading": "rgb(6, 107, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4da36267-ed10-4dcd-8cd5-9a07d0b1a663}"
    }
  }
}