1. Navigate to https://console.developers.google.com/projectselector/home/dashboard in your web browser.
2. After logging in with your Google Account, click the "Create Project" link on the top-right of the page, and you'll be taken to the "Create Project" page. Give the project a name, then click the Create button.
   

   Create Project Link
3. Click the "Google Cloud Platform" link on the top-left of the page to go to your dashboard, then click on the newly created project.
4. In the left pane, navigate to APIs & Services > Library.
   

   API Library Link
5. Use the search box to search for "Custom Search API" and then select it.
6. Click the "Enable" button.
7. Click the "Create Credentials" button on the top-right of the page.
8. Click the "API key" link.
   

   Create API Key Link
9. Give the key a name and then click the "Create" button.
10. Click the copy button next to the API key in the table.
    

    API Key Copy Button
11. Open the Google Image Search wallpaper settings in DisplayFusion and paste the API key into the "API Key" text box

You should now be able to use the Google Image Search wallpaper plugin. If you run into any trouble with the steps in this guide, please feel free to contact us.