viewer-css-theme not working

[smodev]

Hey,

if I set the property "viewer-css-theme" to one of the values it does not change the theme with version "pdfjs-5.0.375-dist".
Also on your demo website the theme is not changing: https://alekswebnet.github.io/pdfjs-viewer-element/#api

[alekswebnet]

Hey @smodev

Theme changing is fixed in the new release, https://github.com/alekswebnet/pdfjs-viewer-element/releases/tag/v2.7.2.

Currently, all v4 and v3 PDF.js releases are fully supported, but not v5.

[glumb]

@alekswebnet in your demo page https://alekswebnet.github.io/pdfjs-viewer-element/#api you use PDF.js 4.x but it also doesnt seem to work. Am I missing something?

[alekswebnet]

@glumb Could you please provide your os/browser? In my case it works

[glumb]

@alekswebnet sure:

OS: macOS 15.4

I tried different browsers:

• Safari Version 18.4 - does not work
• Chrome Version 141.0.7390.54 (Official Build) (arm64) - does not work
• Firefox 143.0.4 (aarch64) - does not work

[alekswebnet]

@glumb
Thanks for your information!
I guess the issue happens only when browser dark mode is enabled
And seems like I found a solution for it
Furthermore, I just tested the fix with PDF.js v5, and theme changing now works fine, which is awesome!
I'll include the fix in the new release, thank you!

[alekswebnet]

@glumb
The issue is fixed in the new release
You can test on the website for PDF.js v4 and v5 by switching a version in the "Path to PDF.js prebuilt" select

[glumb]

@alekswebnet awesome! It works great now :)