Steps to reproduce the issue:
1. Open any existing project or create a new one.
2. Navigate to: “Edit->Project Settings->Graphics”.
3. In the “Inspector” window navigate to: “GraphicsSettings->Built-in shader settings”.
4. Notice that there is a typo in Graphics Settings: “Ligtht Halo”.

Expected result:
Should be “Light Halo”.

Reproduced with:
5.4.0b25, 5.4.0f3.

(This feature seems to be removed from 5.5)