diff --git a/awesomerc.lua.in b/awesomerc.lua.in
index 244a1e20..d66795e2 100644
--- a/awesomerc.lua.in
+++ b/awesomerc.lua.in
@@ -5,12 +5,10 @@ require("awful")
 require("tabulous")
 require("beautiful")
 
-beautiful.init("@AWESOME_THEMES_PATH@/default")
-
--- Uncomment this to activate autotabbing
--- tabulous.autotab_start()
-
 -- {{{ Variable definitions
+-- This is a file path to a theme file which will defines colors.
+theme_path = "@AWESOME_THEMES_PATH@/default"
+
 -- This is used later as the default terminal to run.
 terminal = "xterm"
 
@@ -35,24 +33,37 @@ layouts =
     "floating"
 }
 
--- Table of clients that should be set floating
+-- Table of clients that should be set floating.
 floatings =
 {
     ["mplayer"] = true,
     ["pinentry"] = true
 }
 
--- Define if we want to use titlebar on all applications
+-- Define if we want to use titlebar on all applications.
 use_titlebar = false
 -- }}}
 
+-- {{{ Initialization
+-- Initialize theme (colors).
+beautiful.init(theme_path)
+
+-- Register theme in awful.
+-- This allows to not pass plenty of arguments to each function
+-- to inform it about colors we want it to draw.
+awful.beautiful.register(beautiful)
+
+-- Uncomment this to activate autotabbing
+-- tabulous.autotab_start()
+-- }}}
+
 -- {{{ Tags
--- Define tags table
+-- Define tags table.
 tags = {}
 for s = 1, screen.count() do
-    -- Each screen has its own tag table
+    -- Each screen has its own tag table.
     tags[s] = {}
-    -- Create 9 tags per screen
+    -- Create 9 tags per screen.
     for tagnumber = 1, 9 do
         tags[s][tagnumber] = tag({ name = tagnumber, layout = layouts[1] })
         -- Add tags to screen one by one
@@ -73,14 +84,14 @@ mytaglist:mouse_add(mouse({}, 3, function (object, tag) tag.selected = not tag.s
 mytaglist:mouse_add(mouse({ modkey }, 3, function (object, tag) awful.client.toggletag(tag) end))
 mytaglist:mouse_add(mouse({ }, 4, awful.tag.viewnext))
 mytaglist:mouse_add(mouse({ }, 5, awful.tag.viewprev))
-function mytaglist.label(t) return awful.widget.taglist.label.all(t, beautiful.bg_focus, beautiful.fg_focus, beautiful.bg_urgent, beautiful.fg_urgent) end
+mytaglist.label = awful.widget.taglist.label.all
 
 -- Create a tasklist widget
 mytasklist = widget({ type = "tasklist", name = "mytasklist" })
 mytasklist:mouse_add(mouse({ }, 1, function (object, c) c:focus_set(); c:raise() end))
 mytasklist:mouse_add(mouse({ }, 4, function () awful.client.focusbyidx(1) end))
 mytasklist:mouse_add(mouse({ }, 5, function () awful.client.focusbyidx(-1) end))
-function mytasklist.label(c, screen) return awful.widget.tasklist.label.currenttags(c, screen, beautiful.bg_focus, beautiful.fg_focus, beautiful.bg_urgent, beautiful.fg_urgent) end
+mytasklist.label = awful.widget.tasklist.label.currenttags
 
 -- Create a textbox widget
 mytextbox = widget({ type = "textbox", name = "mytextbox", align = "right" })
@@ -210,10 +221,10 @@ keybinding({ modkey, "Shift" }, "space", function () awful.layout.inc(layouts, -
 
 -- Prompt
 keybinding({ modkey }, "F1", function ()
-                                     awful.prompt({ prompt = "Run: ", cursor_fg = beautiful.fg_focus, cursor_bg = beautiful.bg_focus }, mypromptbox, awful.spawn, awful.completion.bash)
+                                     awful.prompt({ prompt = "Run: " }, mypromptbox, awful.spawn, awful.completion.bash)
                                  end):add()
 keybinding({ modkey }, "F4", function ()
-                                     awful.prompt({ prompt = "Run Lua code: ", cursor_fg = beautiful.fg_focus, cursor_bg = beautiful.bg_focus }, mypromptbox, awful.eval)
+                                     awful.prompt({ prompt = "Run Lua code: " }, mypromptbox, awful.eval)
                                  end):add()
 
 --- Tabulous, tab manipulation
@@ -315,11 +326,7 @@ function hook_manage(c)
     c.floating_placement = "smart"
     if use_titlebar then
         -- Add a titlebar
-        awful.titlebar.add(c, { fg = beautiful.fg_normal,
-                                bg = beautiful.bg_normal,
-                                fg_focus = beautiful.fg_focus,
-                                bg_focus = beautiful.bg_focus,
-                                modkey = modkey })
+        awful.titlebar.add(c, { modkey = modkey })
     end
     -- Add mouse bindings
     c:mouse_add(mouse({ }, 1, function (c) c:focus_set(); c:raise() end))
diff --git a/lib/awful.lua.in b/lib/awful.lua.in
index 45b022c8..c19b255b 100644
--- a/lib/awful.lua.in
+++ b/lib/awful.lua.in
@@ -48,7 +48,11 @@ function ObjectTable.new()
     return o
 end
 
--- Various structure
+-- Local variable handling theme
+local theme = {}
+
+-- Various public structures
+beautiful = {}
 hooks = {}
 hooks.user =  {}
 prompt = {}
@@ -783,18 +787,18 @@ local function prompt_text_with_cursor(text, text_color, cursor_color, cursor_po
 end
 
 --- Run a prompt in a box.
--- @param args A table with optional arguments: cursor_fg, cursor_bg, prompt.
+-- @param args A table with optional arguments: fg_cursor, bg_cursor, prompt.
 -- @param textbox The textbox to use for the prompt.
 -- @param exe_callback The callback function to call with command as argument when finished.
 -- @param completion_callback The callback function to call to get completion.
 function prompt(args, textbox, exe_callback, completion_callback)
-    if not args then return end
+    if not args then args = {} end
     local command = ""
     local command_before_comp
     local cur_pos_before_comp
     local prompt = args.prompt or ""
-    local inv_col = args.cursor_fg or "black"
-    local cur_col = args.cursor_bg or "white"
+    local inv_col = args.fg_cursor or theme.fg_focus or "black"
+    local cur_col = args.bg_cursor or theme.bg_focus or "white"
     -- The cursor position
     local cur_pos = 1
     -- The completion element to use on completion request.
@@ -967,12 +971,18 @@ end
 -- It returns the tag name and set a special
 -- foreground and background color for selected tags.
 -- @param t The tag.
--- @param bg_focus The background color for selected tag.
--- @param fg_focus The foreground color for selected tag.
--- @param bg_urgent The background color for urgent tags.
--- @param fg_urgent The foreground color for urgent tags.
+-- @param args The arguments table.
+-- bg_focus The background color for selected tag.
+-- fg_focus The foreground color for selected tag.
+-- bg_urgent The background color for urgent tags.
+-- fg_urgent The foreground color for urgent tags.
 -- @return A string to print.
-function widget.taglist.label.all(t, bg_focus, fg_focus, bg_urgent, fg_urgent)
+function widget.taglist.label.all(t, args)
+    if not args then args = {} end
+    local fg_focus = args.fg_focus or theme.fg_focus
+    local bg_focus = args.bg_focus or theme.bg_focus
+    local fg_urgent = args.fg_urgent or theme.fg_urgent
+    local bg_urgent = args.bg_urgent or theme.bg_urgent
     local text
     local background = ""
     local sel = capi.client.focus_get()
@@ -1003,7 +1013,12 @@ function widget.taglist.label.all(t, bg_focus, fg_focus, bg_urgent, fg_urgent)
     return text
 end
 
-local function widget_tasklist_label_common(c, bg_focus, fg_focus, bg_urgent, fg_urgent)
+local function widget_tasklist_label_common(c, args)
+    if not args then args = {} end
+    local fg_focus = args.fg_focus or theme.fg_focus
+    local bg_focus = args.bg_focus or theme.bg_focus
+    local fg_urgent = args.fg_urgent or theme.fg_urgent
+    local bg_urgent = args.bg_urgent or theme.bg_urgent
     local text = ""
     if c.floating then
         text = "<bg image=\"@AWESOME_ICON_PATH@/tasklist/floatingw.png\" align=\"right\"/>"
@@ -1024,13 +1039,14 @@ end
 -- It also puts a special icon for floating windows.
 -- @param c The client.
 -- @param screen The screen we are drawing on.
--- @param bg_focus The background color for focused client.
--- @param fg_focus The foreground color for focused client.
--- @param bg_urgent The background color for urgent clients.
--- @param fg_urgent The foreground color for urgent clients.
--- @return A string to pring.
-function widget.tasklist.label.allscreen(c, screen, bg_focus, fg_focus, bg_urgent, fg_urgent)
-    return widget_tasklist_label_common(c, bg_focus, fg_focus, bg_urgent, fg_urgent)
+-- @param args The arguments table.
+-- bg_focus The background color for focused client.
+-- fg_focus The foreground color for focused client.
+-- bg_urgent The background color for urgent clients.
+-- fg_urgent The foreground color for urgent clients.
+-- @return A string to print.
+function widget.tasklist.label.allscreen(c, screen, args)
+    return widget_tasklist_label_common(c, args)
 end
 
 --- Return labels for a tasklist widget with clients from all tags.
@@ -1039,15 +1055,16 @@ end
 -- It also puts a special icon for floating windows.
 -- @param c The client.
 -- @param screen The screen we are drawing on.
--- @param bg_focus The background color for focused client.
--- @param fg_focus The foreground color for focused client.
--- @param bg_urgent The background color for urgent clients.
--- @param fg_urgent The foreground color for urgent clients.
--- @return A string to pring.
-function widget.tasklist.label.alltags(c, screen, bg_focus, fg_focus, bg_urgent, fg_urgent)
+-- @param args The arguments table.
+-- bg_focus The background color for focused client.
+-- fg_focus The foreground color for focused client.
+-- bg_urgent The background color for urgent clients.
+-- fg_urgent The foreground color for urgent clients.
+-- @return A string to print.
+function widget.tasklist.label.alltags(c, screen, args)
     -- Only print client on the same screen as this widget
     if c.screen ~= screen then return end
-    return widget_tasklist_label_common(c, bg_focus, fg_focus, bg_urgent, fg_urgent)
+    return widget_tasklist_label_common(c, args)
 end
 
 --- Return labels for a tasklist widget with clients from currently selected tags.
@@ -1056,17 +1073,18 @@ end
 -- It also puts a special icon for floating windows.
 -- @param c The client.
 -- @param screen The screen we are drawing on.
--- @param bg_focus The background color for focused client.
--- @param fg_focus The foreground color for focused client.
--- @param bg_urgent The background color for urgent clients.
--- @param fg_urgent The foreground color for urgent clients.
--- @return A string to pring.
-function widget.tasklist.label.currenttags(c, screen, bg_focus, fg_focus, bg_urgent, fg_urgent)
+-- @param args The arguments table.
+-- bg_focus The background color for focused client.
+-- fg_focus The foreground color for focused client.
+-- bg_urgent The background color for urgent clients.
+-- fg_urgent The foreground color for urgent clients.
+-- @return A string to print.
+function widget.tasklist.label.currenttags(c, screen, args)
     -- Only print client on the same screen as this widget
     if c.screen ~= screen then return end
     for k, t in pairs(capi.tag.get(screen)) do
         if t.selected and c:istagged(t) then
-            return widget_tasklist_label_common(c, bg_focus, fg_focus, bg_urgent, fg_urgent)
+            return widget_tasklist_label_common(c, args)
         end
     end
 end
@@ -1079,12 +1097,13 @@ end
 -- fg_focus: the foreground color for focused window.
 -- fg_focus: the background color for focused window.
 function titlebar.add(c, args)
+    if not args then args = {} end
     -- Store colors
     titlebar.data[c] = {}
-    titlebar.data[c].fg = args.fg
-    titlebar.data[c].bg = args.bg
-    titlebar.data[c].fg_focus = args.fg_focus
-    titlebar.data[c].bg_focus = args.bg_focus
+    titlebar.data[c].fg = args.fg or theme.fg_normal
+    titlebar.data[c].bg = args.bg or theme.bg_normal
+    titlebar.data[c].fg_focus = args.fg_focus or theme.fg_focus
+    titlebar.data[c].bg_focus = args.bg_focus or theme.bg_focus
 
     -- Built args
     local targs = {}
@@ -1139,6 +1158,16 @@ function titlebar.remove(c)
     titlebar.data[c] = nil
 end
 
+--- Set the beautiful theme if any.
+-- @param The beautiful theme.
+function beautiful.register(btheme)
+    if btheme then
+        theme = btheme
+    else
+        theme = {}
+    end
+end
+
 -- Register standards hooks
 hooks.arrange.register(tag.history.update)