One issue with sketchup that has bothered me for years… When applying a color/texture to a solid object, the back face (inside of the solid) does not take the material. This is not that big fo a deal, EXCEPT that these back face materials show up when viewing the model from a distance as well as along edges in renders. For example, if you have a series of solid cubes textured red, you will still see the white default material bleeding through from many angles and in image exports. Really kills the cleanness of the overall look.
Obviously, I could go into a group or component and start navigating inside the object to apply the material, but there must be a better workflow for this.
Hoping someone here knows of a simple and efficient solution or perhaps an extension/plugin to solve this.