Is is possible to have two(or more) different window titlebar images?

[Valyar]

I am working on some fancy frames and the default image used all over the ruleset for the window titlebar is not looking sleek on the fancy frames. Is there (an easy) way to have second windowtitlebar template and assign it only to the character select and party sheet for example?

Basically I created second template alongside separate image and tried to apply it to <sheetdata> for 1-2 libraries but it didn't work. Is this supported and if yes - any idea how I can make it work?

[damned]

Im pretty sure that should work... maybe you missed a step?

[Valyar]

Im pretty sure that should work... maybe you missed a step?

I am not sure what I missed, therefore I ask
I tried to follow the examples where the template is set, but something is amiss. If I make this work, it will be totally awesome.