A small bug in the Drop Shadow

[Li Xiao]

When the Shadow is set to Block, setting some parameter values for the Perspective Shadow's End Scale and Start Scale can lead to uncontrollable issues.

Drop Shadow.vstyler

https://youtu.be/XGS4uZF6-5M

[VectorStyler]

@Li-Xiao I opened a bug on this

[Li Xiao]

@VectorStyler The bug is fixed. thanks.
The perspective block shadow works well on shapes, but it's still struggling with text. it needs some improve.