Secure Shell is an xterm-compatible terminal emulator and stand-alone ssh client for Chrome. This is an official Chrome app created by Google. According to Google, it uses Native-Client to connect directly to ssh servers without the need for external proxies A cool thing from Secure Shell app’s settings, background images.
To set background image for Secure Shell app, go to app’s settings and look for background-image. On this field, replace the image url or, if you do not have anything there yet, type in url(your-image-url).
Another useful feature of the Google Secure Shell app is that your settings sync across all the devices that you use. If you have never heard of this app, download it from here.