The toolbar text is white, difficult to read

Hi, I have a similar issue to what was described in this topic

However the solutions listed there did not help me. I am using Libre Calc on Fedora.
Version: 25.2.4.3 (X86_64)
Build ID: 520(Build:3)
CPU threads: 16; OS: Linux 6.14; UI render: default; VCL: gtk3
Locale: en-CA (en_CA.UTF-8); UI: en-US
Calc: threaded

I’ve tried a number of things, like reinstalling the app, changing the icon themes, but none of them worked.

Any help would be appreciated

Have you tried Tools ⇒ Options ⇒ Appearance ⇒ Options and try different settings (System, Light, Dark) to see if it makes a difference? Are you using dark or light theme in Fedora?
For example, I use Debian 12 with GNOME DE dark set. In Appearance I have Light set with document background Color set at White

and it shows as follows

which for me (with poor eyesight) is quite easy to read.