How to open images with GIMP from the Unity Editor

In general, if you double-click on an image file inside of the Unity Editor, it'll open the image in the Photos app.

Most of the times you actually want to edit the images, not view them. 

So, it's convenient to make it open up the image in your favorite editor instead than on the Photos app.

Here's how you can accomplish that. In this example I will use the GIMP editor, but you can use any other program you want.

1) From the Unity editor, enter Edit<Preferences... 

2) Click on the "image application" option and hit "Browse"

3) Find your editor's executable (.exe) file

If you don't know where this file is, a quick way to find out is by hitting the Start button at the bottom left, or hitting the Windows key, and then typing the program's name.

Expand the top options with the arrow button, and click on "Open file location", this will open up an explorer in the location you need. You can copy it from the top as seen in the screenshot below.

Now that you know your editor's location, enter it in the explorer Unity opens up when searching for a custom Image Editor. 

4) Done!

Once you double click the .exe, you're done! Close up the Preferences window, and go test it out!

If you have any issues, let us know in the comments down below!