KDE4: make a plasma theme style

[Fenix-TX]

I've seen on kde-look three plasma style themes for KDE4 (*), but anyone knows how to make one? Is there any tutorial or document to know how must be characteristcs to make a theme/style?

(*)These ones:
http://www.kde-look.org/content/show...?content=74537
http://www.kde-look.org/content/show...?content=74480
http://www.kde-look.org/content/show...?content=74329

[Fenix-TX]

Re: KDE4: make a plasma theme style

Well, i've found this link with information about how to make a plasma theme. I'm trying to make only a panel background theme, but i don't know how to change some colours as you can see on this scrrenshot: