As usual, the correct response is given in the first couple of responses, and then it all goes south.
Ontario's HTA doesn't specifically mention or allow for reverse lamps. Also, the section quoted above mentions the lighting that is required but it doesn't properly cover the lighting that is not allowed. It has been pointed out before that if you have two red-facing rear lamps, you have one. If you have one red-facing rear lamp and one white lamp that indirectly illuminates the license plate and one rear-facing lamp that displays pink with purple polka-dots (as long as they're not flashing), you have one red-racing rear lamp and you have an illuminated license plate. The other one isn't specifically addressed as long as it is not flashing. It's the same grey area that concerns so-called "under-glow" auxiliary lighting ... not really legal but not really illegal, either.
When Ontario's poorly-written HTA fails, revert to the Federal standard that is much better written (although still not perfect): CMVSS 108.
White-facing rear lamps (aside from the indirect license plate illumination) are only permitted as reverse lamps and must not be activated when the vehicle is in any gear other than reverse.
The only permitted forward-facing colours are white and amber. The only permitted rear-facing colours are red, and amber (or red) for turn signals only, and white for reversing lamps only, and the indirect white illumination of the license plate.
White-facing rear lighting fails the common-sense test. People expect to see red rear illumination and white front illumination. Something else, and you could be either coming or going.