Proposed solution
When I select ‘Save Screenshot’ in the ‘Graph view’, the saved screenshot will always have a dark theme, even if I am using a bright theme. I hope the saved screenshots can follow the current theme, at least adapting to the default bright color theme. Thank you.
I don’t experience this. I just tested on MacOS, and it makes the screenshot transparent for me.
And it renders all the elements the same as the light/dark setting that I am currently in.
What OS are you on?
What theme or snippets are you using?
Is your Obsidian version AND installer both up to date?
Are you using a bright theme, but set to dark mode in Obsidian? That might be the problem.