Win Metal UI is a beautiful user interface with a very elegant style.
Only apply it with the launcher of your preference in the following way

Open the Win Metal UI application and go to the upper left menu
-Select set or apply.
-It will show you the launchers supported and in the first place the ones you have installed.
-Select the one of your preference and press accept.
-You do not have any installed launcher just select it and it will take you to the download link of it.
-You can also open your launcher and from there apply the icon pack.
-You can also use an IconChanger if you do not have a launcher.

-> Features
- 4200+ Custom icons.
-Intelligent request of icons.
-Design colorful with chrome lines.
-Iconos HD with resolution 192x192 pixels.
-Support for the following launchers:

Compatible launchers included in the application section:

Action
ADW
Apex
Atom
Aviate
CM Theme Engine
GO
Holo
Holo HD
LG
Lucid
M
Mini
Next
Nougat
Nova
Smart
Solo
V
ZenUI
Zero
ABC
Evie

Compatible launchers not included in the board:

Arrow
ASAP
Cobo
Line
Mesh
Peek
Z
Launch by Quixey
iTop
KK
MN
New
S
Open
Flick

-It is not compatible with the default launcher of your samsung or huawei phone.

-Support limited in launcher go launcher because it does not support masking icons.

-This package of icons uses the CandyBar board.

-Support Muzei

-Interface Graphic in several languages