By default Fotaflo automatically enhances photos by adjusting colors, contrast, and brightness. This is similar to features in other photo apps that have an "auto fix" button. In 99% of cases this results in better results which is why it's the default we've used for quite a while.
However, some clients have noticed that photos appear different on Fotaflo compared to the original upload. This usually happens if you have photos with unusual or dominant colors, or you've done some manual editing or retouching.
To address this you can now disable automatic photo enhancement in the basic settings for your Fotaflo locations.