Caret/manifest.json

{
    "name": "Caret",
    "description": "Professional text editing for Chrome and Chrome OS",
    "version": "0.0.10",
    "manifest_version": 2,
    "icons": {
      "128": "icon-128.png",
      "32": "icon.png"
    },

    "app": {
        "background": {
            "scripts": [ "background.js" ]
        }
    },
    
    "permissions": [
      "clipboardRead",
      "clipboardWrite",
      "contextMenus",
      "storage",
      {
        "fileSystem": [ "write", "retainEntries" ]
      }
    ],

    "kiosk_enabled": false,
    "offline_enabled": true,
    
    "file_handlers": {
      "text": {
         "extensions": [ "as", "as3", "asm", "c", "cpp", "coffee", "conf", "cs", "csh", "css", "csv", "diff", "el", "ejs", "for", "g", "go", "h", "htm", "html", "htmls", "java", "js", "json", "log", "lua", "man", "manifest", "md", "mdoc", "me", "patch", "pl", "py", "rake", "rb", "sh", "shtml", "text", "tsv", "txt", "vcf", "vcs", "wml", "wmls", "wsc", "xml", "yaml", "yml", "zsh" ],
         "title": "Caret",
         "types": [ "application/javascript", "application/json", "application/x-shellscript", "application/xml", "text/*" ]
      }
   }
}