Rules for enabling floating on specific applications in i3wm

i3_wm_application_specific_rules.config

#### RULES FOR SPECIFIC APPLICATIONS ####
# from: http://www.linuxlusers.com/2012/12/24/i3-window-manager-tip-making-specific-applications-and-child-windows-open-in-floating-mode-or-with-other-custom-settings/
# by APPLICATION (WM_CLASS)
# Note: class is typically useful for applying custom settings to
#       to entire applications, including child windows. If this
#       isn't want you want see the ROLE section, below.
# Tip: To find out what these values might be run:
#       xprop | grep -i 'class'
for_window [class="File-roller"] floating enable, border normal
for_window [class="Speedcrunch"] floating enable, border normal
for_window [class="Gloobus-preview"] floating enable, border none
for_window [class="Pavucontrol"] floating enable, border normal

# by ROLE (WM_WINDOW_ROLE)
# Note: window_role is Typically useful for effecting child windows
#       such as instant messaging converstations, email composition
#       windows, etc.
# Tip: To find out what these values might be run:
#       xprop | grep -i 'role'#
for_window [window_role="conversation"] floating enable, border normal
for_window [window_role="Msgcompose"] floating enable, border normal