Flat texture preview in material selection window

I’m creating a level using set of tiled textures.
Like this:

All is ok, but previews in material selction window are spherical:

I guess it’s obvious that it’s almost impossible to distinguish such textures with sperical preview. Are there a way to preview them in flat mode?

I use ProBuilder and created similar topic on World Building forum , but this window is not ProBuilder specific, so the solution most probably should be at Unity level.

For the material Preview the sahader decides what preview type should be used.
For example the sprite shader uses the Plane as a preview for the sprite.

You could make a shader variant of your shader that includes:

SubShader
{
Tags
{
“PreviewType”=“Plane”
}…

Wow. It helped, thanks!