No texture was a block that was used by the Developers for testing purposes.
When the players modified the game, they could access the block and discovered somewhere in 2013.
It has a neon-pink background with a red footprint of a dog with "NO TEXTURE" at the bottom with the 2012 KoGaMa font
In late 2020, the texture in-game was changed into the Khaki texture. Nevertheless the texture is not removed in the files (yet).