## :warning: Not needed anymore As `image/jxl` is now supported by [shared-mine-info 2.2](https://gitlab.freedesktop.org/xdg/shared-mime-info/-/releases/2.2), it should not be necessary anymore to install this plugin. You can test if your system correctly understand the MIME type of JPEG XL image by obtaining a JPEG XL image, e.g. with ```bash wget https://raw.githubusercontent.com/libjxl/conformance/master/testcases/bicycles/input.jxl ``` and with that sample JPEG XL file `input.jxl` (or any other valid JPEG XL file), run any of the following commands: ```bash xdg-mime query filetype input.jxl file --mime-type input.jxl mimetype input.jxl ``` If the output contains `image/jxl` you are all set! ## JPEG XL MIME type If not already installed by the [Installing section of BUILDING.md](../../BUILDING.md#installing), then it can be done manually: ### Install ```bash sudo xdg-mime install --novendor image-jxl.xml ``` Then run: ``` update-mime --local ``` ### Uninstall ```bash sudo xdg-mime uninstall image-jxl.xml ```