Tinting is a tough one, you might tint your headlights/taillights to darken them up, but you effect not only hi beams and/or low beams; you're darkening brake lights, reverse lights, indicators etc which becomes risky.
My brother bought taillights that had been darkened using that spray paint tint stuff, covering all but the indicators. I know for sure that they are very illegal, you can hardly see the brake lights during the day when he brakes. Luckily he has a brake light on his djr spoiler or else you'd never know he's braking.
Best to just assume its illegal and accept the risk. I have chameleon tint on the rear tail lights covering the indicator (if you'd ever seen Zac Baldy's rig, I got the inspiration from that) and I know for sure that's illegal. Haven't been booked for it yet though, and neither has my brother.
We're in WA though, and I've heard that we have less strict cops when compared to other states when it comes to car modifications.