This is a cheat mod with merged detect life/undead/dwarven/dead magic effect powered by Spell Perk Item Distributor to avoid conflicts, distance restrictions and Papyrus slowness (there is no need to recast the spell in background again and again). ESL-flagged because it's really tiny.

Get the spell tomes or enchanted armor using AddItemMenu or anything you want. It's a cheat magic so it's ok to use such tools.

• If you cast the separated lesser power then you need to select detection group to toggle (regular, undead, dwarven, dead). 0 is off, 1 is on.
• If you cast the merged lesser power then all creatures detection just toggles on/off with a notification.
• If you equip/unequip circlet or trinket then all creatures detection just toggles on/off without any notification.
• If you learn the keyboard toggle spell then V key will be registered to toggle all detection in one press.
• If you cast one of the single lesser powers then its group toggles on/off without a notification.
  

Enchantment
You can disenchant circlet or trinket to learn the magic effect and then apply it to any type of apparel (armor, clothing, jewelry, shield) using Arcane Enchanter. Note that effect toggles on equip/unequip, so if you equip 2 detection items and then unequip any of them the detection will be dispelled. It's better to use only one detection item at once.

Key
You can change the key used in the keyboard toggle spell, set the [General] iKeyCode setting in the config.ini file to any supported DXScanCode. This value is read on the game load, but you can also change it during the game running. In the second case you need to press the current key and it will be changed with a notification. You can always know the current key code from your active effects menu, initial key code value is 47.

Distance
You can also set the detection distance using the [General] fDistance setting in the config.ini file. This setting is measured in Units and its default value is 6000 or 85 meters or 281 feet (approximately). This setting is read on the game load, you can also change its associated global NewVision_GLOB_Distance but it will be overwritten on the next game load. It's better to use the config.ini file.

Colors

• To enable colors changing on the game load you can use the [General] fLoadDelay setting in the config.ini file. During this time in seconds any highlight will be disabled because this is required to change colors. If you like all the default colors set this value to 0.0, otherwise it must be more then 1.0, because 1.0 sec is the time of checking conditions. The default value is 1.5 and I recommend it.
• You cannot set new colors in something like RGB values because the shaders use gradient textures. You can only set new gradient texture path for any type of the effect in the [Colors] section in config.ini file. The path must be a DDS texture located in the Data/Textures/[...] folder (loose or BSA), and "Data/Textures/" must be truncated.
  

Here's the list of used default colors:

• Regular neutral targets have deep blue highlight.
• Regular hostile targets have red highlight.
• Undead neutral targets have white highlight.
• Undead hostile targets have orange highlight.
• Dwarven neutral targets have green highlight.
• Dwarven hostile targets have light blue highlight.
• Dead (both neutral and hostile) targets have purple highlight.
  

Blacklist
This mod has its own blacklist keyword: 0xD8C~NewVision.esp OR NewVision_KYWD_Blacklist. It's used to exclude any NPCs from New Vision spells on SPID processing, feel free to edit its rules in the DISTR.ini file. ManakinRace is included by default, so mannequins will not be highlighted.

Issues
This mod doesn't conflict with any similar mod making it bugged, but there may be too bright highlight if the same effect is applied via another mod. Also there may be FPS drop if there are too many highlighted NPCs in a view. That's not my fault if you spawn about a hundred of Nazeems to verify this.