all that u mentioned WB can do .. u can do urself manually by changin the appropriate files using resource hacker
read digit's crack it contests for the past 2 months to learn more
personally i dun think WB deserves that much attention just for this ( anymore that is .. once i discovered how it could be done .. i left WB for good ... i never liked it ... but i had no choice with my animations

)
u dunno abt resource hungry ... trust us .. we do

WB sucks it up ... u WILL notice the diff. using style XP or no software ... u have to .. and u must !! ( notice the diff. i mean )
extract all the resources u have and manually edit the appropriate files .... exasperating ... but rewards are greater ... and the self satisfaction makes it worth it
ofcourse u wont be able to change as often as u like

u CAN make ur own themes too ... for whichever software u want ...
there is no interoperability ... but u can make anythign work if u put ur mind to it
one example .. i really liked this VIPER ( DODGE ) logo screen ... but it was in a logonui.exe form ...
and i didnt wanna mess with EXE's ... i used logon studio
i extracted all thef iles necessary from it ...and i made my own logon studio VIPER logon

silly ... but felt good when i did it 2 yrs back