Examine source code of The 1st Try

{
  "theme": {
    "images": {
      "theme_frame": "upper.png"
    },
    "colors": {
      "frame": "#33ffbe",
      "tab_background_text": "#0091ff"
    }
  },
  "version": "2.0",
  "name": "The 1st Try",
  "manifest_version": 2,
  "description": "My First Little Work\nThat's how the title came from"
}