Unity standard shader consuming 5.3Mb of build file size

Unity Engine
1

I copied the Unity 5 standard shader into my resources folder. After creating a PC build, the log file states the shader text file consumes 5.3Mb in the build. Does this seem correct?
I verified the Standard.shader is the correct file and only 9.0 Kb. But the log file of the build says:

Used Assets, sorted by uncompressed size:
3.4 mb 3.2% Assets/Resources/Shaders/Standard.shader

The file was downloaded from:

This is the largest single file in the build.

2

Yup. Ideally you want to strip it down to the target essentials.