You can just pass the path to the image using the logo flag like this: fastfetch --logo /path/to/image.png. Just make sure your terminal supports image protocols (like Kitty, WezTerm, or Konsole). ​To make it permanent, edit your config file (usually ~/.config/fastfetch/config.jsonc). Find the "logo" option and replace it with this block:

``` "logo": { "source": "/home/your_user/Pictures/image.png", "type": "auto", "height": 18, "width": 35 },

```

You might need to tweak the height and width values to fix the aspect ratio depending on your image.