Copy the “Before” icon and open it in Photofiltre. Save this icon texture.
Now click the Masque button and click the folder icon, go to your Pictures Folder, and open up the icon texture you saved earlier.
Now that you have the icon texture selected click this once Then set the mode to Pattern and click the folder next to pattern and find the rainbow pattern.
Make sure to have Blur and Stretch Mask checked. I set my opacity to 85 but you can change it to whatever. Your settings should look like this so far.
Then click ok and you can now add whatever effects you want.
To get my effect:
Click three times and once.