[awesome] Customized notification theming

This work is still commented out for now. Once we successfully
switch to awesome-git we can bring these changes in.

awesome/rc.lua

@@ -14,6 +14,7 @@ local beautiful = require("beautiful")
 local naughty = require("naughty")
 local menubar = require("menubar")
 local lain = require("lain")
+-- local ruled = require("ruled")
 local hotkeys_popup = require("awful.hotkeys_popup")
 -- Enable hotkeys help widget for VIM and other apps
 -- when client with a matching name is opened:
@@ -173,6 +174,27 @@ local function set_wallpaper(s)
     end
 end
 
+-- Notifications
+--[[
+ruled.notification.connect_signal("request::rules", function()
+    -- Add a red background for urgent notifications.
+    ruled.notification.append_rule {
+        rule       = { urgency = "critical" },
+        properties = { bg = "#ff0000", fg = "#32cd32", timeout = 0 }
+    }
+
+    -- Or green background for normal ones.
+    ruled.notification.append_rule {
+        rule       = { urgency = "normal" },
+        properties = { bg      = "#32cd32", fg = "#800080"}
+    }
+    ruled.notification.append_rule {
+        rule       = { urgency = "low" },
+        properties = { bg      = "#bbccff", fg = "#191970"}
+    }
+end)
+--]]
+
 -- Re-set wallpaper when a screen's geometry changes (e.g. different resolution)
 screen.connect_signal("property::geometry", set_wallpaper)