Why is color backdrop option only available on certain photos

Thank you for getting back to us, K1ller009!

We believe you'll find the information we've provided below will answer your question.

Customize your Lock Screen photo

If you choose a photo for your Lock Screen, you can reposition the photo, change the photo style, and more.

* Reposition your photo: To reposition your selected image, pinch open to zoom in on it, drag the image with two fingers to move it, then pinch closed to zoom out.

* Change the photo style: Swipe left or right to try different photo styles with complementary color filters and fonts.

* Create a multilayered effect: If you have a photo that supports layering—like an image with people, pets, or the sky—tap  at the bottom right, then choose Depth Effect.

* Note: The multilayered effect is available on supported models. Layering may not be available if the subject is too high, too low, or obscures too much of the clock.

* Set the shuffle frequency: If you choose Photo Shuffle, you can preview the photos by tapping , and set the shuffle frequency by tapping , then selecting an option below Shuffle Frequency.

Tip: Alternatively, you can add a photo directly from your photo library to your Home Screen and Lock Screen. In the Photos app , tap Library, select a photo, then tap . Scroll down and select Use as Wallpaper, tap Done, then choose whether to show it on both your Home Screen and Lock Screen.

The resource referenced above is: Create a custom iPhone Lock Screen - Apple Support You can find additional information by visiting this link.

Cheers!

Hey K1ller009,

We’d be happy to help out, however it’s not quite clear what you are referring to. What do you mean by color backdrop? Could you provide more details on what you’re trying to accomplish and how you’re going about doing so?

We look forward to gathering more details to better understand your question. For more help on editing photos though, check out: Edit photos and videos on iPhone - Apple Support

Take care!

also encountered the same issue and I have not figured it out yet!

First picture has the “Seamless Background Mono”

Second does not. (Less options available)

Setting as wallpaper btw