diff --git a/lib/colored.rb b/lib/colored.rb
index c107d73..b028d16 100644
--- a/lib/colored.rb
+++ b/lib/colored.rb
@@ -29,6 +29,8 @@ module Colored
   EXTRAS = {
     'clear'     => 0, 
     'bold'      => 1,
+    'dark'      => 2,
+    'italic'    => 3,
     'underline' => 4,
     'reversed'  => 7
   }
@@ -67,7 +69,7 @@ module Colored
 
   def colorize(string, options = {})
     colored = [color(options[:foreground]), color("on_#{options[:background]}"), extra(options[:extra])].compact * ''
-    colored << string
+    colored << String(string)
     colored << extra(:clear)
   end
 
@@ -89,3 +91,6 @@ def color(color_name)
 end unless Object.const_defined? :Colored
 
 String.send(:include, Colored)
+Fixnum.send(:include, Colored)
+Float.send(:include, Colored)
+
diff --git a/test/colored_test.rb b/test/colored_test.rb
index 3b77990..acb0b5c 100644
--- a/test/colored_test.rb
+++ b/test/colored_test.rb
@@ -4,34 +4,51 @@
 class TestColor < Test::Unit::TestCase
   def test_one_color
     assert_equal "\e[31mred\e[0m", "red".red
+    assert_equal "\e[31m100\e[0m", 100.red
+    assert_equal "\e[31m100.001\e[0m", 100.001.red
   end
 
   def test_two_colors
     assert_equal "\e[34m\e[31mblue\e[0m\e[0m", "blue".red.blue
+    assert_equal "\e[34m\e[31m505\e[0m\e[0m", 505.red.blue
+    assert_equal "\e[34m\e[31m505.223\e[0m\e[0m", 505.223.red.blue
   end
 
   def test_background_color
     assert_equal "\e[43mon yellow\e[0m", "on yellow".on_yellow
+    assert_equal "\e[43m1920\e[0m", 1920.on_yellow
+    assert_equal "\e[43m19.2\e[0m", 19.2.on_yellow
   end
 
   def test_hot_color_on_color_action
     assert_equal "\e[31m\e[44mred on blue\e[0m", "red on blue".red_on_blue 
+    assert_equal "\e[31m\e[44m38\e[0m", 38.red_on_blue 
+    assert_equal "\e[31m\e[44m38.38\e[0m", 38.38.red_on_blue 
+
   end
 
   def test_modifier
     assert_equal "\e[1mway bold\e[0m", "way bold".bold
+    assert_equal "\e[1m35\e[0m", 35.bold
+    assert_equal "\e[1m35.467\e[0m", 35.467.bold
   end
 
   def test_modifiers_stack
     assert_equal "\e[4m\e[1munderlined bold\e[0m\e[0m", "underlined bold".bold.underline
+    assert_equal "\e[4m\e[1m129\e[0m\e[0m", 129.bold.underline
+    assert_equal "\e[4m\e[1m129.29\e[0m\e[0m", 129.29.bold.underline
   end
 
   def test_modifiers_stack_with_colors
     assert_equal "\e[36m\e[4m\e[1mcyan underlined bold\e[0m\e[0m\e[0m", "cyan underlined bold".bold.underline.cyan
+    assert_equal "\e[36m\e[4m\e[1m954\e[0m\e[0m\e[0m", 954.bold.underline.cyan
+    assert_equal "\e[36m\e[4m\e[1m954.55\e[0m\e[0m\e[0m", 954.55.bold.underline.cyan
   end
 
   def test_eol
     assert_equal "\e[2Knothing to see here really.", "nothing to see here really.".to_eol
+    #assert_equal "\e[2K456", 456.to_eol
+    #assert_equal "\e[2K456.82", 456.82.to_eol
   end
 
   def test_eol_with_with_two_colors