Use less contrasting color for $fail icon

dotfiles/i3/config

   set $runn     "<span foreground='cyan'></span> %title"
   set $pass     "<span foreground='lime'></span> %title"
   set $warn     "<span foreground='orange'></span> %title"
-  set $fail     "<span foreground='red'></span> %title"
+  set $fail     "<span foreground='#992222'></span> %title"
   set $strike   "<s>%title</s>"
   set $unders   "<u>%title</u>"
   set $italic   "<i>%title</i>"