How do I make vertices more visible I'm using Blender 2.79. I think I've seen people have their vertices in edit mode colored bright yellow and in larger scale than normal. But I can't find any settings for this. Does anybody know where this setting is?
Blender 2.79 : you will find these options in User Preferences:

File > User Preferences > Themes > 3D View >  vertex colors and vertex size :