Code font white in documentation. unreadable

Im coming from Unity3D and wanted to learn Unreal to use UE5 when it will fully come out.

Im using the documentation and reading everything but the some characters in the code are in a white font with the white background so it’s invisible.

I noticed that the page has a function to set the dark or light mode but it doesnt work. Maybe this bug makes some element in a color for the dark theme while we are still in the light theme.

The class culcript is pun.

I had to write this code and run it in google chrome console

var cells = document.getElementsByClassName("pun");
var len = cells.length;
for(var i = 0; i < len; i++) {
    cells[i].className = "pln";

Is it really a bug or there is something that im missing?