Invert Ambient Display

Hey everyone just wondering if there's a way to invert my ambient display for black themes. I know this is a common issue and I am on LightRom 6.0
I have done a number of searches with no result and I have only seen this option on a couple heavily modded Lolli Roms.
Cheers.

Invert colors toggle won't show up when I swipe down to open quick settings

My nexus 5 is stock and is running marshmallow. I got system tuner settings to show up , when I make adjustments to have invert colors toggle apart of my quick setting , it doesn't show up when i swipe down to open quick settings. Id like to have my settings dark theme.

Also does Doze activate by itself or do I have to activate it ?