I was having Problems getting Loot Detector: Scrapper Corpse Highlighting by Xatmos to work with Horizon by Zawinol, so i hopped on Fo4 Edit and fixed it :)
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Scrapper corpse highlighting has been updated to Loot Detector and you should no longer need this fix. If you just absolutely love the color variant then it should still work, I have been away from fallout 4 and modding for a long time so no guarantee's. if it doesn't work just delete my "Patch". 
YOU STILL NEED THE ORIGINAL MOD FROM XATMOS.
IF YOU ALREADY HAVE MY "PATCH" REMOVE IT BEFORE USING THIS Version.
The Load order is the same as Below. Again you should only have ONE "Horizon Scrapper Patch" ESP in your load order.
I Added what I call "Unobtrusive White" version.
I made this edit to the original Scrapper Corpse Highlighting because I wanted to see the NPCs I was looting, Also I kinda wanted to still have to look a little for the corpses.
This is great if you just want to know if that "Giblet" you are looking at is lootable, but also don't want Glowing Bodies to break your "Immersion"
Will Probably add easier to see colors in the future.
If NMM Doesn't Download it let me know.
NOTE: the main patch will not change anything about your corpse highlight, so if you gotthe blue/pink/yellow version your corpses will still be blue/pink/yellow respectively.  
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Guys I Did it. It is now NMM Compatible. I Probably goofed the upload somehow on the original. But just in case you can't get it to download through NMM
1. Download Manually
2. Extract the Horizon Scrapper Patch.esp to .../Fallout 4/Data
3.Tick it on in the Mod manager plugins


What this Mod/Patch/Fix Does:
The only thing i did was make an override of the scrapper file from Scrapper Corpse Highlighting and Changed the Values From the vanilla values to Horizons values.

What this Mod/Patch/Fix Does NOT Do:
Add or remove any thing. If the item on the corpse is not a direct edit of the base Game it will not trigger the Highlight on the corpse. (I ran into this issue a few times while playing but not many.)

All in all this is a Simple Fix for Now. without having to load Scrapper Corpse Highlighting after Horizon and messing up the changes to the Scrapper Perk from Horizon.

I will be working on adding all the items that don't trigger the flag that should in the future, but my time is limited and I would much rather play the game. 

Required Mods:
Loot Detector - Scrapper Corpse Highlighting 
Horizon

Load Order:
Scrapper Corpse Highlighting
Scrapper corpse Highlighting DLC Patch (Not Required)
Z_Horizon
Other Horizon Patches (Not Required)
Horizon Scrapper Patch <-- (This Esp)