This is a black re-color for Dogmeat's armor. It will work for all versions of his armor. Also working on a version that is black but has regular color hardware. This will also override his helmet too, so it will be black. I just haven't found the item/the base id to be able to show it in a screenshot yet.

1. Place the texture folder into C:\Program Files (x86)\Steam\steamapps\common\Fallout 4\Data. If you already have the texture folder, place the contents inside into the folder.

2. Open the Fallout4.ini file in your Documents folder: (...Documents\My Games\Fallout4) and find the line: sResourceDataDirsFinal
Replace it with: sResourceDataDirsFinal=STRINGS\, TEXTURES\ and save the file!