C# `file` keyword/accessibility modifier is not highlighted

[Arthri]

Information

• Language: C#
• Plugins: none

Description
The file accessibility modifier is not highlighted like the rest of the accessibility modifiers. https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/access-modifiers

Code snippet

Test page

The code being highlighted incorrectly.

file class K {}