Fix the ux issue that seperator in new tab page is too deep dark, and it is not according with visual design and wireframe.
Fix the ux issue that seperator in new tab page is too deep dark, and it is not according with visual design and wireframe.

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser