Pixel 7 phone case for printing mainly in TPU, but feel free to experiment with other materials. I also added 2mm to the bottom of the model to keep the camera bump from being damaged. The model will still print in infill pattern with this adjustment, no worries.

User will need to choose an infill pattern and density that suits them and just press ‘Slice,’ the model will appear solid in the preview.

If users opt to download the 3mf file, I've added modifiers to it for a Cloud pattern to be printed over the infill pattern, example in photos is Archimedean chord.