AxBlendMode A class describing a blend mode by declaring both the source and destination modes.
 AxColor A class describing the red, green, blue, and alpha components of a color.
 AxQuad Describes the properties of an axis-aligned quad used for drawing a sprite.
 AxShader A descriptor holding the information required for rendering, including the vertex shader, the fragment shader, and the size of each row in the vertex buffer.
 AxTexture A descriptor holding the required information for a texture uploaded to the GPU.