Automatically convert my illustrations to dark background for dark mode

Hi,

I’m using Obsidian with a light theme (default skin, white background, some snippets and black accents). I’d like to take advantage of the holidays to switch to a dark theme, mainly to support melatonin production in the evening.

Switching the theme itself is no problem, but I’m running into one issue: most of my images (mainly diagrams) were designed for a white background. In dark mode, they look bad and even hurt the eyes.

So here’s my question:
Is there a clean and automated way to convert these images so they integrate well into a dark theme?

I haven’t found any existing solution despite some research. If nothing exists yet, does anyone know where such a feature could be officially suggested?

PS: macOS has a kind of “smart dark mode” that works on some visuals. I’m (sadly) on Windows (because i'm poor /s). Has anyone tested that feature or knows of a similar option for Windows users?

https://preview.redd.it/nt2a38yt2o4f1.png?width=877&format=png&auto=webp&s=b6ca9cee6f02e496a7039371e3f88a8a6a7e436d