EGL_KHR_config_attribs
https://www.khronos.org/registry/egl/specs/eglspec.1.5.pdf
EGL_KHR_config_attribs

	EGL_VG_COLORSPACE_LINEAR_BIT_KHR 0x0020
	EGL_VG_ALPHA_FORMAT_PRE_BIT_KHR 0x0040
	EGL_CONFORMANT_KHR 0x3042