[Question] Is it possible to make texture visible through?

Like title says is it possible?
For example: we have a square. Medium size. I’d like to make a smile texture in center of it, but I’d like to make around the smile visible through.

You mean transparency? Yeah, you need to use an alpha channel while making the texture.

In Colour tool, slide the checkerbox slider all the way down. Click it and it will be invisible