Breakpoint

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Breakpoint",
  "version": "1.0.2",
  "manifest_version": 2,
  "description": "The easiest way to find the break points in your responsive web designs.",
  "offline_enabled": true,
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "src/bg/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/content.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icons/icon19.png"
  },
  "commands": {
    "width_minus_1": {
      "suggested_key": {
        "default": "Alt+Left"
      },
      "description": "Decrease window width by 1px"
    },
    "width_minus_10": {
      "suggested_key": {
        "default": "Alt+Shift+Left"
      },
      "description": "Decrease window width by 10px"
    },
    "width_plus_1": {
      "suggested_key": {
        "default": "Alt+Right"
      },
      "description": "Increase window width by 1px"
    },
    "width_plus_10": {
      "suggested_key": {
        "default": "Alt+Shift+Right"
      },
      "description": "Increase window width by 10px"
    },
    "height_minus_1": {
      "description": "Decrease window height by 1px"
    },
    "height_minus_10": {
      "description": "Decrease window height by 10px"
    },
    "height_plus_1": {
      "description": "Increase window height by 1px"
    },
    "height_plus_10": {
      "description": "Increase window height by 10px"
    }
  }
}