When you create a Lite App within Hermit, it will attempt to add the icon to your home screen automatically. (You can turn this off in Settings if you want to.)
Automatic Add works on many launchers, but not all. Hermit follows the Android API correctly, and if Automatic Add does not work on your phone, please contact the developer of your launcher app and report this bug.
If Automatic Add does not work on your phone, you can add the icon manually.
Some photo picker apps (i.e. the external app that is used above to select an icon) do not support transparency. We recommend using Google Photos or a file picker app (instead of a photo picker app) to choose the icon so that it will retain transparent areas of the icon correctly.
Android O forces app developers to use the new Shortcuts API, which makes your icons smaller and adds needless Hermit branding to it. We don’t like it either, but we have no choice.
There’s no sugar-coating this; we really liked how icons on your home screen looked before Android O. But we have no say in the matter; to make Hermit work on Android O, we have to go with this new API.
For a wonderfully pretty outcome on Android O, we recommend using the Touch and Hold technique (see above).