(novice) Optimum shader for png's with alpha for Sprite assets

Seems to be hit or miss when it comes to getting proper transparency with png’s with alpha.
Anyone care to share their preferred approach and or shader when creating Sprite assets with transparency?

What do you mean hit or miss? Sprite assets should support transparency… there’s a known bug (which i am waiting to get fixed) with Unity 5.5.x that doesn’t properly import .png’s with transparency.

Perhaps its a bug then. I don’t get transparency with default Standard Shader when used with PNG’s having alpha