unwanted texture blurring

I have a graphical issue I can’t explain to myself. When I procedurally generate a low res transparent texture and put it on a Quad it gets horribly blurred in Playmode. I want to get rid of this but I don’t know what causes it.
Image weaponarc is what the texture itself looks like (zoom in!). Image weaponarc_blurrededitor shows how it looks on a quad. I want that the blurring disappears (I want to do it myself in the texture creation). So my question is what must I do? Is it a shader setting? Something with the camera? A project setting?
This happens in 5.5.1f1 in an empty scene with just a camera, the light and the quad with the script which creates the texture.
I have tried different shaders (Unlit/Transparent, Particles/Alpha Blended and others).
I have disabled Anti Aliasing in ProjectSettings/Quality (and restarted Editor).
I have looked through all Settings I could find and imagine to have something to do with the problem.
So I apreciate any explanation or idea what causes that and how I could get rid of it.
Many thanks.

3144576--238729--weaponarc.png
3144576--238730--weaponarc_blurrededitor.png

Turn off texture filtering (bilinear/trilinear). Set it to Point. Disable mip-maps.

1 Like

Thanks stardog, that worked. Looks much better now.
I deactivated mipmaps in the constructor, but filtering is an extra setting.
Thanks again.