Examine source code of Lighweight theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#543b00",
      "tab_background_text": "#f2eaba"
    }
  },
  "version": "2.0",
  "name": "Lighweight theme",
  "manifest_version": 2,
  "description": "I do not own this theme, I cannot find it one the website, and I lost all my themes after switching computers, but I'm able to re-upload it so I can use it again."
}