In version 1.1.0, the lighting options in Retro Shaders Pro have been vastly expanded!

• Added support for Forward+ and Deferred rendering paths for each base shader
  • The VertexLit shader will use the UniversalForwardOnly mode in Deferred path, as vertex lighting and deferred lighting aren't super compatible conceptually
• Support for additional lights (i.e., point and spot lights) in the Lit and VertexLit shaders
• Support for vertex colors, which will modify the albedo color of your meshes
• Ambient light toggle which lets you choose between Unity's ambient light, and a manual override lighting percentage
• Added a second demo scene showcasing the new realtime additional lighting and shadow support (note: uses too many lights for Forward rendering by design, so switch to Forward+ or Deferred instead)

I plan to actively continue development on this pack (and I have already received excellent suggestions for features), so please reach out if you encounter problems or if you'd like something to be added!