The Blue Silver is very nice and optimized skin with light blue colors

1. Copy the "Blue Silver.chm" and the folder "Blue Silver" into the root folder of your TransFlash card
2. Establish Telnet connection and type:
# cp "/mmc/mmca1/Blue Silver.chm" /ezx_user/download/appwrite/setup/theme/
# mkdir /ezxlocal/download/appwrite/skin
NOTE: do this mkdir only if you never done it before
# mkdir "/ezxlocal/download/appwrite/skin/Blue Silver"
# cp "/mmc/mmca1/Blue Silver/*" "/ezxlocal/download/appwrite/skin/Blue Silver"
3. Restart your Moto E2 and try it

Download HERE