Draws a GUI Texture. See unity docs: DrawTexture.
Texture
Texture to draw.
Left
Left screen coordinate.
Top
Top screen coordinate.
Width
Width of texture on screen.
Height
Height of texture on screen.
Scale Mode
How to stretch the texture.
Alpha Blend
Alpha blend with background.
Image Aspect
Alternate image aspect ratio (width/height).
Normalized
Use normalized screen coordinates (0-1).
