Color inversion in excalidraw embedded images

So as a student, I often times find myself having to solve worksheets. I use excalidraw for that, which works great, except in the dark mode: most worksheet pdfs, pngs and jpgs are white with black text on them. so in the dark mode, when the pen is producing white “ink”, the ink isnt visible on the white worksheets. this is why i would like to have my colors always inverted for imported pdfs, imgs, etc. how do i do that?

Sorry this is so late but I am getting it too. Looks like a known issue that other people are having. I asked on their discord server about it and I’m waiting on a response: Inserted images have incorrect colors in dark mode · Issue #6516 · excalidraw/excalidraw · GitHub

So annoying.