Let me preface this by saying that I'm a complete beginner when it comes to Blender, as in - I just clicked on the Blender icon for the very first time ever yesterday.
(BTW, model was not done in Blender but in Sketchup. I'm not that quick of a learner :)
So, I'm just looking to add a little bit of roughness/pen strokes to the material. This blender material looks exactly like what I'm trying to achieve, but after downloading it I can neither open, nor link/append it for some reason (I'm using Blender 2.81 and 2.77, didn't work with either).
I'm thinking some kind of procedural wood texture added as a bump map and somehow occluded to appear only at the edge of the black and white areas would do the trick, but I don't know how to do that.
BTW, I've looked at a few tutorials online for toon/sketched materials, but none of them are what I'm looking for. They are either too cartoonish, or the inking is too heavy and unrealistic.
Thanks in advance to anyone who could help me out with this!