This feature is for merchants who wish to substitute words with images in the frontend display on the app-edition. (i.e. images with category and product names at the center, images of products instead of words)
1. Go to Settings.
2. Select the General Settings tab.
3. In the POS Product Grid section, select Enabled under HIDE PRODUCT/CATEGORY NAMES(APP, PIC-ONLY MODE).
4. Scroll down and press Save.