I made a simple design for my WinForms app in Photoshop and I want to make some borderless buttons. In FlatAppearance properties, I changed border size to 0 and the FlatSyle is Flat but when the mouse is hovering on the button, its background color turns to grey, although I changed it to transparent. I'll attach some pics to get the problem better.

Can somebody help me, please?

How I want to look:

how it looks

CodePudding user response：

In the same place that you changed the border size to zero, change the MouseOverBackColor to Transparent: