Shadow not showing for right side menu

[Shamsiddin]

Every thing's OK with the left side menu's shadow, but there isn't shadow for right side menu.
I tried below code, and seems it only works for left side:
rootController.configs.shadowOppacity = 0.15

Shifting shadow offset to the left also didn't help:
rootController.configs.shadowOffset = CGSize(width: -5, height: 0)

Any suggestions to show shadow for the left menu too?

[sedwo]

Try my repo: https://github.com/sedwo/FAPanels