Ultima 4.0 is Kodi Build for Leia 18 from UK1 wizard. This build has size of 180 MB and it uses Aeon Nox Silvo skin.
It has sections for Movies, Tv shows, Sports, Favourites, Kids, Music, Extras, One Click, World TV, Addons including Deathstar, Medusa, Joyride, Supremacy,Deceit, Jor-El, Kratos, The Magic Dragon and more.
How to Install Ultima 4.0 Kodi Build 18 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://uk1.site/Repo/
Step 6) Name it uk1
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: uk1
Step 12) Click repository-uk18.104.22.168.zip
Step 13) Wait for the notification in the top-right corner to popup, Uk1 Repository Installed/Updated
Step 14) Click Install from Repository
Step 15) Click Uk1 Repository
Step 16) Click Program Add-ons
Step 17) Click Uk1 Wizard
Step 18) Click Install
Step 19) Wait for the Top-right notification: the additional dependencies click where it says OK
Step 20) Wait for the notification in the top-right corner to popup, Uk1 Wizard Installed
Step 21) Wait for the Top-right notification: a information message click Dismiss
Step 22) Click Continue
Step 23) Click Here
Step 24) Click Builds Menu
Step 25) Click 18 Ultima 4.0
Step 26) Click Fresh Install or Standard Install (Fresh Install is usually bests)
Step 27) Click Yes
Step 28) It will download and Install
Step 29) Click OK to force Close Kodi
Step 30)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.