This effect is responsible for the administration of contrast of the photos. You can reduce it by choosing a negative value (-20% or -40%), or conversely to increase the contrast of the photos on 20 or 40 percent.
Important! The menu with all the effects is placed above the photo when you preview the single picture. When this menu is hidden, you will see only the title - "Effects". To expand it, you have to click on the title. Then you'll see all the effects, you can use for your photos.
To change the contrast:
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