by Michel's add-ons & more in Scripts and Addons

TextureWatch is a small Blender add-on to automatically synchronize textures used in your .blend file if they change on disk. This simplifies working with external programs like Gimp or Substance Painter because TextureWatch can automatically update those textures when you save your files without the need to go through all images inside Blender one by one and selecting reload. This saves time as well as guarantees consistency.