tortoiseSVN diff viewer

I use SourceControl tortoiseSVN. I had set “Tool for diff’ing text” is “tortoiseMerge.exe”

follow tutorial 언리얼 애셋 버전비교 - Unreal Engine

but my diff viewer is text format. I want to show blueprint viewer.

How to see blueprint viewer not text format viewer?

You can’t diff/merge blueprints.