windows 6.5 supports skinning these elements. they are all just images and registry entries pointing to them. you can also control spacing and such now with themes. check out my theme in my sig and these threads to help get you started,
http://forum.xda-developers.com/showthread.php?t=501506
http://forum.xda-developers.com/showthread.php?t=501390
p.s. the large black buttons in the images you posted are from showaco, they are not part of a theme but a program he wrote to help create new titanium panels, his thread is here;
http://forum.xda-developers.com/showthread.php?t=481379