Introduce Blending Modes to XD

Hi,

its a good practice to regulary check if your values are correct when designing.

For that reason, when im in Photoshop, i always put a layer on top of everything, fill it with black and set it to the Color Blending mode.

Which literally turns everything black & white and you see very fast if your design is still working.

If not you have to think about your colors and contrasts again.

Im missing such a feature in XD so if there is currently no solution to it, consider this as a feature request.