The missing textures are wholily different to Gmod's missing textures, since it uses a whole purple background and an outline in it compared to Gmod's missing textures which are repeating checkers of pink and black. The placeholder texture is always used for all items in builds 0.1 to 0.4 except the scratch cat. The reason for this is because the scratch devs didn't hire a texture creator, since there was no texture creator in the team. The failed to render texture is briefly used in builds 0.5 to 1, only the text called "unknown.png" is shown. The texture text may be changed to different file formats such as "grass-surface.jpg" or the current grass filename, "grass.png". However, in build 1, the failed to render texture has been migrated to the missing texture.
Who made the fonts Notes: They didn't hire it because they were still a small company and didn't gain a lot of money to hire them.