Resolution 1024x768.
Fits most resolutions and best fit 1024x768. Screen capture is the 1280x1024.
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Resolution 1680x1050
https://chrome.google.com/extensions/detail/gpghdlkjginnphhfpdccobkbncldkgmc
Resolution 1920x1080
https://chrome.google.com/extensions/detail/kgjcdipkjnplmhiaadhdakafdealbobg