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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Slack Columns",
  "short_name": "SC",
  "version": "1.0.2",
  "description": "Display multiple channels side by side. 複数チャンネルを並べて表示することができます。",
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "icons/icon-19.png"
    },
    "default_title": "Slack ColumnsF",
    "default_popup": "src/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://app.slack.com/client/*"
      ],
      "js": [
        "src/content.js"
      ],
      "css": [
        "src/content.css"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "homepage_url": "https://github.com/k8shiro/chrome_extension_slack_columns"
}