Oh Noes API Changes :-( 

• Version 0.8 to 1.0

--- hello_world.pl
+++ hello_world.pl
@@ -7,10 +7,10 @@
 
 my $stage = Clutter::Stage->get_default();
 $stage->set_size(600, 400);
-$stage->set_color(Clutter::Color->parse('DarkSlateGray'));
+$stage->set_color(Clutter::Color->from_string('DarkSlateGray'));
 
-my $label = Clutter::Label->new("Sans 30", "Hello, World!");
-$label->set_color(Clutter::Color->parse('#f4961bff'));
+my $label = Clutter::Text->new("Sans 30", "Hello, World!");
+$label->set_color(Clutter::Color->from_string('#f4961bff'));
 $label->set_anchor_point(0, 0);
 $label->set_position(10, 10);
 $stage->add($label);