GL_NV_fragment_coverage_to_color
https://www.khronos.org/registry/OpenGL/extensions/NV/NV_fragment_coverage_to_color.txt
GL_NV_fragment_coverage_to_color

	GL_FRAGMENT_COVERAGE_TO_COLOR_NV 0x92DD
	GL_FRAGMENT_COVERAGE_COLOR_NV 0x92DE
	void glFragmentCoverageColorNV (GLuint color)
