How can I beautify the output in Wolfram Engine + WLJS Notebook?

[Ahri-man]

I am using the Wolfram Engine + WLJS desktop app.

If I run the following commands:

    Integrate[Sqrt[x + Sqrt[x]], x];
    TeXForm[%];
    CellView["$$"<>%<>"$$", "Display"->"markdown"]

I get a nicely formatted output in the WLJS desktop app.

Why don't the developers make this output the default one? Will an update address this issue?

I want to define a function named ShowTeX[Command[...]]and paste it in my init.m file. so that whenever I run ShowTeX[Command[...]], the output of Command[...] is the nice version.

How do I define this function? Where should I define it?

---

Also, how can I export an equation or plot to pdf?

I tried doing this:

plot = Plot[Sin[x], {x, 0, 10}]

Export["plot.pdf", plot, "PDF"]

but when I open plot.pdf I see this:

(*VB[*)(FrontEndRef[" 36 141 474 - df34 - 4484 - 936 d - 1 e5907404044 "])(*,*)(* 1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKG5sZmhiamJvopqQZm+ iamFiY6Foam6XoGqaaWhqYmxgAoQkAamMUJw== *) (*]VB*)