im surprised that no one's answered this yet.

Yes - your turn signals are amber.
Yes - larger vehicles actually outline their shape with amber markers (ie large trucks)
Yes - quite a lot of vehicles come from the factory with amber side markers.
Yes - you can add a flashing or rotating amber light on top of your car if you really wish to (tow trucks do this)

Hey y'all I've been through court quite a few times now so this isn't super new to me... however, i cannot find any case law at all about signs not being visible due to sun set light. Long story short - I made a U-turn at a controlled intersection with traffic lights (from the left turn lane). I was facing westbound prior to the left turn lane right before sunset. There was one no u-turn sign for the entire intersection and the sun happened to be right beside the sign (as it was setting). Due to this setting sunlight glare, I could not see the sign. from O/Reg 615 45. A sign prescribed by this...