Resolving custom component skins

Question

In a stylesheet, namespace declarations exist for spark and mx components that allow a flex component name to resolve to a type selector that binds that component with its skin.
e.g.
@namespace s "library://ns.adobe.com/flex/spark";
s|Button { skinClass: ClassReference(" ...ButtonSkin"); }
I want to use the same method for my custom components and skins, but what namespace declaration do I use?
e.g.
mxml file:
<myc:CustomComponent ... />
stylesheet file:
@namespace ? "?"
?|CustomComponent {
  skinClass: ClassReference("com...skins.CustomComponentSkin");

Answer 1

In your MXML file, look at the very top, you should have something like
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
           xmlns:s="library://ns.adobe.com/flex/spark"
           xmlns:mx="library://ns.adobe.com/flex/halo"
           xmlns:myc="something.something.something">
Try using the same namespace in the CSS as in above, eg
@namespace myc "something.something.something";