With iOS13 and Android Q coming up with OS-wide dark mode, how do you plan to ensure all your assets & illustrations look good on a dark background?

It should be pretty easy to handle components & text styles.

But is there a systemic way to transition PNGs, lottie animations or other illustrative assets? Maybe by adding the right background color? Or does dark mode mean re-drawing a dark version of all your assets? (This sounds like a crazy amount of work)