{
  "manifest_version": 2,
  "name": "Breakbot",
  "short_name": "Breakbot",
  "version": "1.3.2",
  "description": "Quickly add disruptive unicode, naughty strings, and more to your clipboard.",
  "author": "Jack Kingsman <jack.kingsman@gmail.com>",
  "homepage_url": "https://github.com/jkingsman/Breakbot",
  "browser_action": {
    "default_title": "NaughtyBot",
    "default_icon": {
      "19": "img/breakbot-19.png",
      "38": "img/breakbot-38.png"
    },
    "default_popup": "popup.html"
  },
  "permissions": [
    "clipboardWrite"
  ],
  "icons": {
    "16": "img/breakbot-16.png",
    "48": "img/breakbot-48.png",
    "128": "img/breakbot-128.png"
  }
}

{
  "manifest_version": 2,
  "name": "Breakbot",
  "short_name": "Breakbot",
  "version": "1.3.3",
  "description": "Quickly add disruptive unicode, naughty strings, and more to your clipboard.",
  "author": "Jack Kingsman <jack.kingsman@gmail.com>",
  "homepage_url": "https://github.com/jkingsman/Breakbot",
  "browser_action": {
    "default_title": "NaughtyBot",
    "default_icon": {
      "19": "img/breakbot-19.png",
      "38": "img/breakbot-38.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "page": "popup.html"
  },
  "permissions": [
    "clipboardWrite"
  ],
  "icons": {
    "16": "img/breakbot-16.png",
    "48": "img/breakbot-48.png",
    "128": "img/breakbot-128.png"
  }
}

Put popup page in background
Put popup page in background

This hacky workaround, per
http://stackoverflow.com/questions/20139744/browseraction-opens-slowly-unless-already-open-in-a-tab
sets the popup as a background page to eliminate display latency.
