If you are looking to uninstall Get the Picture! and have followed all the directions here, only to find you cannot delete the files you can do so by completing the following steps. 

1. Open a finder window
2. Click on the "Go" option in the top navigation (shown in the below image) 
3. Hold down the "option" button on your keyboard and the "Library Folder" will appear
4. Click on the link to open it and delete the storage folder found here

Mac OS