Android 5.1 lets you configure different colors for the dialer for each SIM

Although the Android 5.1 still in the testing phase on a limited number of devices in the line One, some news are already starting to appear. One of these comes to improve the experience of using devices Dual-SIM. In this new version of the mobile system it is possible to choose a dialer color for each chip and with that it is clearly identifiable by which operator the call is being made.

Unfortunately, no official statement has been made so far regarding this functionality and therefore we cannot say whether this option will be present in the stock version of the system or if it is something created only for the One line devices.

In any case, this option will probably only be present on devices with two chips, such as the Samsung GALAXY S5 Duos and even if the official version does not make it available, certainly several alternative versions of the system, such as cyanogem, should implement such an option.

Source: Android Police