Create a Chrome Extension like [url removed, login to view] The only default search item would be Google - the rest can be deleted.
I believe API can be found at [url removed, login to view]
A few differences - highlighted value in the webpage could appear multiple times.
The configuration text file could have an option to be pulled from Dropbox as a text file. The user would input the location in the extension options. The user would also have the ability to uncheck options in the text file, and the extension would remember this selection. A potential example of a config file can be found at [url removed, login to view]
The configuration file may be encrypted as denoted with file extension .enc. The extension should have an input box for the decryption key. The same file encrypted can be found at [url removed, login to view] It was encrypted using password EfVH6K$pQG4NbakKPYU8GrhQn9m$gKkW%i5Y@mpPZu7sHBV8gkRMg72qho at website [url removed, login to view] (AES 256).
The extension would be branded differently.
Example sites that I'm using with the extension:
[["-1","Virus Total","[url removed, login to view]%s/analysis/",true],["-1","Malware DL","[url removed, login to view];colsearch=All&quantity=50",true]]
If you have improvements or suggestions - let me know. I will probably tweak the details a little, so take that into account.