Available in 3ds Max 2011 and higher.
<adsk_Utility_Mix2Color>.color2 : fRGBA color
<adsk_Utility_Mix2Color>.mixing_mode : integer
<adsk_Utility_Mix2Color>.mixing_factor : float
<adsk_Utility_Mix2Color>.color1_connected : boolean
<adsk_Utility_Mix2Color>.color1_shader : texturemap
<adsk_Utility_Mix2Color>.color1_paramName : string
<adsk_Utility_Mix2Color>.color2_connected : boolean
<adsk_Utility_Mix2Color>.color2_shader : texturemap
<adsk_Utility_Mix2Color>.color2_paramName : string
<adsk_Utility_Mix2Color>.mixing_mode_connected : boolean
<adsk_Utility_Mix2Color>.mixing_mode_shader : texturemap
<adsk_Utility_Mix2Color>.mixing_mode_paramName : string
<adsk_Utility_Mix2Color>.mixing_factor_connected : boolean
<adsk_Utility_Mix2Color>.mixing_factor_shader : texturemap
<adsk_Utility_Mix2Color>.mixing_factor_paramName : string
<adsk_Utility_Mix2Color>.TheList : maxObject array
<adsk_Utility_Mix2Color>.Shader_Version : integer