[flexcoders] External StyleSheet In Application

[flexawesome]

hey there,

I added stylesheet into my application as below, but it does change 
the color or size in my application.

I have to recompile the application to take effect. Is there anything 
wrong?

Thanks


<mx:Style source="main.css"/>

=============== in CCS file ==============

Application {
   backgroundColor:                     #ffffff;
   backgroundGradientColors:            #ffffff, #ffffff;
   backgroundGradientAlphas:            1, 1;
   themeColor:                          #009dff;
   color:                               #0b333c;
}