How to change dmenu's font size in xmonad?

I just start to use xmonad window manager. It is wonderful. I tried to modify some configurations to get it work more suitable for me. My question is: 1. How to make a keyboard shortcut for commonly used apps? For example, I'd like to bind Chrome to mod-b. 2. How to change the dmenu font? I tried to add options to the exec part: dmenu_run -fn "-xos4-terminus-medium-r-*-*-14-*" dmenu_run -fn 'Droid Sans Mono-14' but it doesn't work. ------ **Edit**: Question 1 solved by: > In the section myKeys conf@(XConfig {XMonad.modMask = modm}) = M.fromList $ > > add: > > -- launch Chrome browser > , ((modm, xK_b), spawn "exe=google-chrome") -------------------------------------------- **Edit 2**: Question 2 solved by https://askubuntu.com/questions/326907/custom-font-with-dmenu