How to change the colour of specific part of sprite on touch unity?

Getting Started
1

i am trying to make transparent to a sprite specific part where i touch it.
How can i do it?

2

Hmm, tricky. What defines a “part” of a sprite?

3

@

its like where i click on image,exactly that specific part want to be colour change not anywhere else of its sprite.

4

You still haven’t answered the question. What does “specific part” mean to you? The pixel clicked? The arm, if this is a humanoid character? Perhaps your sprite is a checkerboard, and a “part” is one square? Is it the contiguous set of pixels the same color as the pixel clicked?

I give up. If you can’t tell us what you’re actually trying to do, we can’t help you.

5

its an image Alphabet “A” , and i want to make it transparent where i click.