I have code like this:



    private static string Abc() =>


and i have frame like this (compiled on overleaf):

enter image description here

With Only "$":

enter image description here

How can I get rid of the red frame?

  • 1
    Can you please post a complete compilable example? It is easier to help if you post something that can be compiled without having to guess your environment.
    – Thruston
    Sep 12, 2021 at 15:45
  • Just speculating: looks, like environment minted might not require backslashing ... so what happens if you delete the backslash?
    – MS-SPO
    Sep 12, 2021 at 16:33
  • @MS-SPO is the same. I embedded new image in post.
    – M.Jaskuski
    Sep 12, 2021 at 17:58
  • @Thruston of course. Embedded in post.
    – M.Jaskuski
    Sep 12, 2021 at 17:59

1 Answer 1


Firstly, you don't need to escape the $.

This is a pygments bug relating to its C# lexer, see https://github.com/pygments/pygments/issues/1573, which has been fixed in pygments 2.10.0, released on August 15th, 2021.

Jun 12, 2022 updates:

Unfortunately, Overleaf.com's texlive 2021 still provides pygments v2.9.0. You can check by compiling the example below on overleaf:

pygmentize -V

How I find the above info

  • The red frame in pdf output is the style of pygments parsing error, indicating it's a pygments issue.
  • Then I tested OP's minted snippet both locally and on https://pygments.org/demo/#try, and each of them works ok (with non-escaped $). I also checked $"string" is a valid C# syntax. All that suggest it's a fixed pygments issue.
  • So I directly jump to pygments' changelog and search for "c#/csharp". This gives
    • Updated lexers:

      • [...]
      • C# (#1573, #1869)
  • I checked #1573 and found it's exactly the same issue OP encountered.
  • The rest is straight: checking that issue was fixed and the fixing was published, getting the minimal version containing the fixing (double checked with the sectioning lines in CHANGE).
  • How can I use this new version?
    – M.Jaskuski
    Sep 12, 2021 at 19:23
  • If I try pip install pygments I get that the last version is 2.9.0. On the other hand, the Pygments site says that the last version is 2.10.0. Isn't it weird?
    – egreg
    Sep 12, 2021 at 20:06
  • 1
    @M.Jaskuski @egreg I successfully have 2.10.0 installed from pip. Try pip install pygments --upgrade instead or perhaps you should check your pip trusted host. Sep 12, 2021 at 20:13
  • @muzimuzhiZ Is It possible to use this on overleaf?
    – M.Jaskuski
    Sep 12, 2021 at 21:05
  • Unfortunately no. overleaf still provides pygments v2.3.1, kind of outdated. You can see the version by compiling \documentclass{article} \usepackage{bashful} \begin{document} \bash[stdout] pygmentize -V \END \end{document} Sep 12, 2021 at 21:10

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