Hello,
As I can see, you imported the Baby Shop demo version already.
To import “Contact us” and “About us” pages of this version, go to XStore > Import Demos > Import of the additional pages > http://prntscr.com/ovfdp7
To install default WC pages (Cart, Shop, My account) go to WooCommerce > Status > Tools > Create default WooCommerce pages > Create pages.
To change the color of an active menu item http://prntscr.com/ovfeun , go to Theme Options > Typography > Menu > Menu 1 level (hover, active) > Select Color.
You can edit pages of the menu via Appearance > Menus.
Please read our documentation – https://www.8theme.com/documentation/xstore/ and watch videos – https://www.youtube.com/playlist?list=PLMqMSqDgPNmCCyem_z9l2ZJ1owQUaFCE3
Let us know if you need any further assistance.
Regards