Examine source code of Asuka Numix

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#2d2d2d",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Asuka Numix",
  "manifest_version": 2,
  "description": "A minimalist take on Asuka from Evangelion with the color from Numix themes as the background.\n\nI recommend using the Personas Expression extension to refine the look.\n\nMy Personas Expression settings:\nCheck Modify Text color, white\nCheck Modify text shadow, dark grey\nCheck Draw Persona, Window Top, Blurred\nCheck Modify Tab color, active: light grey, others: dark grey\nEverything else unchecked"
}