At the time of writing, the file used for Mobile Wallpapers is a Photoshop PSD file that uses Smart Objects. You are free to follow these instructions using ClipStudioPaint or other applications and report back on whether they worked the same or not. Due to the nature of the file, it's typically easiest to create the wallpaper download file and it's mockups in the same session. Open the Mobile Wallpaper Template File Edit the Wallpaper Artwork Locate the 'ARTWORK' layer and double click it to open the Smart Object Save the Smart Object and review it in the mockup to check for placement. The artwork should be made in such a way that ensures the time area can be easily legible. Adjust the artwork in the mockup layer until you are satisfied with the result. Shown above: Mockup file on left, ARTWORK smart object file on right. While still viewing the Smart Object, save a JPG version of the file to your Project folder. This is the file that will be downloaded from the product listing. Create the Mockup Close the smart object and return to the original mockup Adjust the time text color if desired for best results. Save files according to what's requested in your Project Document