Should the skin compressed file contain all the CSS files contained in the assets folder?

[nisanov]

Given that the following structure:

src
   project-application
      assets
         skins
            vanilla
               project-application-skin.css
               project-application-panel.css
         project-application-core.css
         project-application-panel.css

with shifter 0.4.2 produces:

build
   project-application
      assets
         skins
            vanilla
               project-application.css
               project-application-skin.css
               project-application-panel.css
         project-application-core.css
         project-application-panel.css

Should project-application.css contain *panel.css file content?