[GH-ISSUE #1336] QR code not working on dark themes #8626

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opened 2026-04-30 04:37:00 -05:00 by GiteaMirror · 3 comments
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Originally created by @Esa-mimbias on GitHub (Aug 25, 2025).
Original GitHub issue: https://github.com/fosrl/pangolin/issues/1336

Hi friends

great job with Pangolin, I really enjoy it !

I was working with 2FA and link shares, it appears I fail to read QR Codes when in dark theme (or system theme, in my configuration)

You may enforce light theme when displaying a QR Code

have a nice week !

Originally created by @Esa-mimbias on GitHub (Aug 25, 2025). Original GitHub issue: https://github.com/fosrl/pangolin/issues/1336 Hi friends great job with Pangolin, I really enjoy it ! I was working with 2FA and link shares, it appears I fail to read QR Codes when in dark theme (or system theme, in my configuration) You may enforce light theme when displaying a QR Code have a nice week !
GiteaMirror added the good first issueuibughelp wanted labels 2026-04-30 04:37:01 -05:00
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@Pallavikumarimdb commented on GitHub (Aug 26, 2025):

Hi @Esa-mimbias , I tested both the 2FA setup QR code and the share link QR code in dark mode,
but both are already rendered with a white background and black modules.
They scanned correctly with authentication apps and QR scanners on my end.

Could you please share:

  • A description (or a redacted screenshot) of how the QR looks in dark mode
  • Steps to reproduce

Happy to work on this once we can reproduce it 🙂

<!-- gh-comment-id:3225701257 --> @Pallavikumarimdb commented on GitHub (Aug 26, 2025): Hi @Esa-mimbias , I tested both the 2FA setup QR code and the share link QR code in dark mode, but both are already rendered with a white background and black modules. They scanned correctly with authentication apps and QR scanners on my end. Could you please share: - A description (or a redacted screenshot) of how the QR looks in dark mode - Steps to reproduce Happy to work on this once we can reproduce it 🙂
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@Esa-mimbias commented on GitHub (Aug 27, 2025):

Thank you for your answer

I made several tests today with other devices and other code readers, and they all were conclusive. Looks like it was a phone issue rather than Pangolin issue.

I'm really sorry to have bothered you with this.
I've met this issue (QR Code incorrectly rendered in dark theme) by the past with some software (even famous one), and jumped too fast to the wrong conclusion.

<!-- gh-comment-id:3228357598 --> @Esa-mimbias commented on GitHub (Aug 27, 2025): Thank you for your answer I made several tests today with other devices and other code readers, and they all were conclusive. Looks like it was a phone issue rather than Pangolin issue. I'm really sorry to have bothered you with this. I've met this issue (QR Code incorrectly rendered in dark theme) by the past with some software (even famous one), and jumped too fast to the wrong conclusion.
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@Pallavikumarimdb commented on GitHub (Aug 27, 2025):

No worries at all! 😊

<!-- gh-comment-id:3228375905 --> @Pallavikumarimdb commented on GitHub (Aug 27, 2025): No worries at all! 😊
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Reference: github-starred/pangolin#8626