One of the most common reasons for rooting and roming a phone has always been for the addition of theming support. Now days many OEMs have theming options built right into their custom skinned versions of Android. With the launch of some devices last year Samsung included the Samsung Store which also included a number of custom themes.
They have extended their custom theming to the all new Galaxy A. The Galaxy A actually gets some special treatment as Samsung has decided to release a series of themes that are exclusive to the device. For now there are 11 themes exclusive to the Galaxy A. Some themes are colorful while others are more minimalistic. To access these themes just head to the Galaxy Store.