Buttons linking to Rust source code files open via xdg-open instead of in Emacs window

[AquariusDue]

Hi, I've encountered a weird issue on Linux that might be more on my part rather than a bug in Hyperbole.

When I make a new button via {C-h h i c} or trigger an implicit button linking to a Rust file like "main.rs" another code editor is opened via xdg-open instead of an Emacs window like I expected. This doesn't happen to Emacs Lisp or TOML files for example.

Do I have to explicitly add the extension for Rust files somewhere?

System and version info

Emacs version: GNU Emacs 30.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.49, cairo version 1.18.2) of 2025-06-16

I use: Editor: GNU Emacs 30.1 with native comp
Hyperbole: 9.0.2pre
Sys Type: x86_64-redhat-linux-gnu
OS Type: gnu/linux
Window Sys: pgtk
News Reader: Gnus v5.13
Install: melpa, 20250715.1226

[rswgnu]

Fixed this issue with the above PR. There was an old Sun Microsystems raster image format that used .rs as a suffix, so Hyperbole wanted to display that externally. We have now removed that suffix from the image file suffix list in the master branch. This fix will appear in the melpa or elpa-devel release a day from now. If you apply it manually, be sure to restart your Emacs after to have the proper customization settings applied to Hyperbole.

[AquariusDue]

Can confirm it works as expected now! Thank you very much!