// color syntax samples
/*
// rgb - Red Green Blue color shortcut
color rgb <0.2, 0.3, 0.4>

// rgbf - Red Green Blue Filter color shortcut
color rgbf <0.2, 0.3, 0.4, 0.9>

// rgbt - Red Green Blue Transmit color shortcut
color rgbt <0.2, 0.3, 0.4, 0.9>

// rgbft - Red Green Blue Filter Transmit color shortcut
// NOTE: filter + transmit should always equal 1.0
color rgbft <0.5, 0.5, 0.5, 0.4, 0.6>

// ------------------------------------- 
color red 1
// 
color green 1
// 
color blue 1
// 
color red 1 filter 1
// 
color green 1 transmit 1
// ------------------------------------- 
// extract each component of a color:
#if (MyColor.red < 0.5) ...
#if (MyColor.green < 0.5) ...
#if (MyColor.blue < 0.5) ...
#if (MyColor.filter < 0.5) ...
#if (MyColor.transmit < 0.5) ...
*/