Recently, I wrote a post on how to enable lock screen on Xubuntu by using XScreensaver functionality. As you can feel, the default XScreensaver appearance is so ugly and not very impressive. Although that's not a big deal for performance and functionality, changing the appearance of your daily tool for work (computer) might can charge your spirit. So, today I'd like to write a simple post on how to change the appearance of XScreensaver lock screen from something like this: