grumpify
type the magic world "cat", then you will see all images are replaced with the lovely grumpy cat gif. This is a chrome extension…
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manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"manifest_version": 2,
"name": "grumpify",
"version": "0.1",
"content_scripts": [
{
"matches": [
"<all_urls>"
],
"js": [
"content.js"
]
}
],
"browser_action": {
"default_icon": "grumpy.png"
}
}