SLOPI logo is black on black in README with GitHub dark theme

[pdurbin]

I designed the SLOPI logo before I started using dark mode. Now I realize it's black on black (you can just barely see it) in the README:

Making the inside of the "O" transparent in 13d65e0 was probably a step in the right direction but I'm not sure how to solve this.

Interestingly, I use the same logo at http://blog.greptilian.com/2020/01/25/slopi-communication/ and it looks fine (reversed, white instead of black) in dark mode on my phone:

I asked about this in Inkscape chat and was referred to https://www.ctrl.blog/entry/svg-embed-dark-mode.html

I'm also looking at various links:

• https://rigtorp.se/notes/dark-mode-svg/
• https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#specifying-the-theme-an-image-is-shown-to
• https://github.blog/changelog/2022-05-19-specify-theme-context-for-images-in-markdown-beta/
• https://www.stefanjudis.com/notes/how-to-define-dark-light-mode-images-in-github-markdown/
• https://github.com/stefanjudis/github-light-dark-image-example
• https://driesvints.com/blog/investigating-dark-mode-for-svgs-in-github-readmes
• https://github.com/jamiebuilds/dark-mode-github-readme-logos
• (uses deprecated syntax) https://dev.to/arnavkr/using-darklight-mode-specific-images-in-github-markdown-3iln