Atomic is a super 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 main menu go to the Gear icon (top-left corner) or Settings
Step 2) go to File Manager
Step 3) go to Add Source
Step 4) go to None
Step 5) Enter this website: http://misfitmods.com/mmwiz/repo/
Step 6) Name it misfit
Step 7) Make sure all the spaces are filled and hit OK
Step 8) Get back to main menu and go to add-ons
Step 9) go to the Box icon from the top left
Step 10) go to Install from zip file
Step 11) We’ll get a new window, here go to: misfit
Step 12) go to 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 go to Dismiss
Step 15) go to Continue
Step 16) go to Build Menu
Step 17) go to Atomic
Step 18) go to Fresh Install or Standard Install (Fresh Install is usually bests)
Step 19) go to Yes to Install
Step 20) It will download and install
Step 21) go to 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 main menu go to the Gear icon (top-left corner) or System
Step 2) go to Interface Settings
Step 3) go to Skin
Step 4) go to Estuary
Step 5) go to Yes
Read Here for How To Remove a Build From Kodi Using the Fresh Start Plugin.