# tlmgr gui > Start a graphical user interface for `tlmgr`. > `tlmgr gui` depends on the package `perl-tk`, which has to be installed manually. > More information: . - Start a GUI for `tlmgr`: `sudo tlmgr gui` - Start a GUI specifying the background color: `sudo tlmgr gui -background "{{#f39bc3}}"` - Start a GUI specifying the foreground color: `sudo tlmgr gui -foreground "{{#0ef3bd}}"` - Start a GUI specifying the font and font size: `sudo tlmgr gui -font "{{helvetica 18}}"` - Start a GUI setting a specific geometry: `sudo tlmgr gui -geometry {{width}}x{{height}}-{{xpos}}+{{ypos}}` - Start a GUI passing an arbitrary X resource string: `sudo tlmgr gui -xrm {{xresource}}`