I would like to have my tab bar similar to the App Store app (picture below). The active section has a coloured solid icon, and the other non-active sections will have the uncoloured outline icons. How can I switch from outline icon to solid icon depending on if it is selected or not? I would preferably want to accomplish this in interface builder but if thats not possible please explain how to do it in code. I have also provided a picture of my current tab bar. Notice how all of the icons are "outline" icons including the active section icon (I want the active section icon to be "solid"). I do have both the outline and solid icon sets, i'm just not sure how to use them both.
My current tab bar: