This guide shows you how to change the app icon shape on Galaxy S20, the available shapes, the limitations and caveats for the new icon shapes.
Samsung added the icon shape customization feature in all Galaxy phones with Android 10. So, this feature is also available on other Galaxy phones including Galaxy S10, Galaxy Note 10, Galaxy Note 9, Galaxy S9, and a few other models.
Update: In Android 11 update (with One UI 3.0), Samsung removed the option of customizing icon shape. You have to use third-party themes or launcher if you do not like the squircle icons.
The limitations and caveats of changing icon shape on Galaxy S20
Before starting to change the icon shape on Galaxy S20, you should be aware of the following 5 caveats and limitations.
#1. The icon shape change is limited to app icons.
The icons in the quick settings panel, or other system UI, will not be affected.
#2. Most of Samsung apps do not change icon shape.
Almost all Samsung apps (e.g., Phone, Messages, Gallery, Camera) were shipped with only one icon shape: squircle.
So, the icon shape will NEVER change for these apps on Galaxy S20.
#3. Some third-party apps may not change the icon shape for some shapes.
Except for apps from Google, some third-party apps may not support some icon shapes.
For example, a lot of third-party apps do not support the teardrop shape.
Please note, whether an app icon shape is supported or not is defined in the app (by the app developer).
#4. You need to enable developer options to change the icon shape on Samsung phones.
On Samsung Galaxy phones with Android 10, app icon shape customization is hidden in the theming section of Galaxy S20 developer options.
So, you need to enable the developer options before you can customize the icon shape.