Just a little something that has bothered me since Alien Multitools were added, and that's the unnecessary varicosis they seem to suffer from.
Aside from personally disliking it aesthetically, with their color not even changing procedurally and always remaining bright red, it also makes little sense to have such a bulging blood vessel visible on the shell of a tool that, as biological in nature can be, is still covered in scales or chitinous shell. So just in case I am not alone in this, here is a mod that can help you.

There is also little chance of it ever conflicting with other mods, but below is the list of files edited.

 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.DARKFLESH.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.DARKFLESH.MASKS.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.DARKFLESH.NORMAL.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.FLESH.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.FLESH.MASKS.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.BASE.FLESH.NORMAL.DDS
 - \TEXTURES\COMMON\WEAPONS\MULTITOOL\FLESHTILING.TEXTURE.MBIN

Also a big thanks to Gumsk for the editing of those texture, through the very helpful discord group No Man's Sky Modding.