Visual Enhancements

Changes to the Icon to make it more colourful* and changes to the D Pad**.

*The rings of the icon is now wider, allowing more colour through from the background layer. The background layer now also has a more exaggerated blue gradient, so that it is a little more noticeable.

**The D Pad has been changed in a way, such that it is an accurate representation of what the D Pad on a real NDS looks like. The arrows and circle are removed for a more simplistic line, which is more reminiscent of a real device.