Feature Request: UI in Grayscale

Despite current light and dark theme I wished there was a Grayscale theme or similar thing.

I use Discord on Google Chrome at work but not for work(slacking off heheh). I want all tab contents in grayscale so that things get easier for me.

Current grayscaling extensions does not work because for every UI change(e.g. new small window on hover, switch between channels or servers) Discord removes any extra style on the html tag. Every time I open a Discord tab I have to open chrome's console and run some code to keep the whole webapp grayscale.

I was yelled Hold Up by Discord in console today and I do not like it :(