Duck Launcher is a Unity like dock and application launcher made for Linux. It is written using Python and Qt languages, it's goal is to increase productivity and be good looking. It allows user to access favorite apps easily on the dock, or all application can be accessed by clicking on the top icon of launcher. File System can be browsed easily with this dock without opening any file manager, this feature is still in development, so keep in mind that anytime problem can occur with this feature.
"Star" is kind of an extension of the file browser and the app launcher: you can choose any application, file or folder and add it. But these can be separated in blocks. Let's say you're a graphic artist, then you'll add a block named "Graphics" and add a few apps, like blender and gimp, and a folder where you store your files, and perhaps a file your working on right know.
Customization of this launcher is quite easy; you can change color, transparency, canvas width and so on.
To install Duck Launcher in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal: