ImageScratch
ImageScratch is the HTML5 <canvas> tool. you can scratch all images of all web pages, and get it via data URL.
Additional files are visible only to premium users
manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"name": "ImageScratch",
"version": "1.3.4",
"manifest_version": 2,
"description": "__MSG_description__",
"default_locale": "en",
"icons": {
"128": "img/128.png"
},
"background": {
"scripts": [
"background/background.js"
],
"persistent": false
},
"browser_action": {
"default_icon": {
"19": "img/19.png"
},
"default_title": "ImageScratch",
"default_popup": "popup/popup.html"
},
"web_accessible_resources": [
"img/*.png"
],
"permissions": [
"storage",
"*://*/*"
]
}