Atomic is a great Kodi Build for Leia 18 from MisfitMods Wizard. It uses Atomic Bomb 17 Skin and it has size of 167 MB.
The main build categories are Movies, TV shows, Kids, Sports, Eternal TV, Urban, Horror, Fanfaves, All in One, Music, Add-ons and System.
How to Install Atomic 18 Kodi Build Leia
Step 1) From home screen go to the Gear icon (top-left corner) or Settings
Step 2) Click File Manager
Step 3) Click Add Source
Step 4) Click None
Step 5) Enter the following URL: http://misfitmods.com/mmwiz/repo/
Step 6) Name it misfit
Step 7) Make sure all the boxes are filled and press OK
Step 8) Go back to Home screen and click add-ons
Step 9) Click the Box icon from the top left
Step 10) Click Install from zip file
Step 11) We’ll get a new window, here click: misfit
Step 12) Click plugin.program.misfitmods-1.4.zip
Step 13) Wait for the notification in the top-right corner to popup, Misfit Mods Wizard Installed
Step 14) Wait for the Top-right notification: a information message click Dismiss
Step 15) Click Continue
Step 16) Click Build Menu
Step 17) Click Atomic
Step 18) Click Fresh Install or Standard Install (Fresh Install is usually bests)
Step 19) Click Yes to Install
Step 20) It will download and install
Step 21) Click force close
Step 22) After it installs restart Kodi and it should come up. Be sure to give it time to build menus and update add-ons.
How to change the Skin back to Default Estuary
If this Build does not work for you here is how to change the Skin back to default Estuary and remove it.
Step 1) From home screen go to the Gear icon (top-left corner) or System
Step 2) Click Interface Settings
Step 3) Click Skin
Step 4) Click Estuary
Step 5) Click Yes
Read Here for How To Remove a Build From Kodi Using the Fresh Start Plugin.