Hi Didrik, 
I’ve added your details to the open feature request we’re tracking for dark mode and an extra +1 vote for you!
For now, if you’re looking to reduce how bright Whimsical is, there are a few workarounds I can suggest:
- To mimic a dark canvas, you can create a very large and dark shape and then lock it to the background.
- Some browsers, as well as operating systems, allow you to completely invert colors.
- You can also create a custom color theme that isn’t as vivid as our default colors.
I hope one of those options might help you out in the meantime! 