using image as box

hi…
I want to use following image box style…
alt text
but when I want to use this it’s not high quality and not good feeling about this… the default bar of GUI is great for me… can I use the default box but change it’s color to purple or blue instate of black?

Yes. http://unity3d.com/support/documentation/ScriptReference/GUI-skin.html

http://unity3d.com/support/documentation/ScriptReference/GUISkin.html

you can override the default GUI skin as DaveA points out. But you can also just access the parts of the skin through GUIStyle

http://unity3d.com/support/documentation/ScriptReference/GUIStyle.html

You create a variable of the class/type GUIStyle, assign the wanted image/properties and then apply it to the object you want it on.