This Xbox A icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,300 icons, all in the same style and quality.
This icon is a circle drawn around an upper case a. The A is centered in the circle and takes up the majority of the space inside of the circle. The A is made of thicker lines than the circle is. The A is drawn in the normal way with the point facing up.