Download of webOS Theme Builder 3.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The actual developer of this free software for Mac is Jason Robitaille. The program lies within Developer Tools, more precisely IDE.
From the developer:
This application creates zip themes for webOS. Such themes can be uploaded to both the PreCentral Theme Gallery and PreThemer.
What's more, with v3.0, it fully supports the JSON zip format used by the Theme Manager on-device app for next-gen webOS theming.
You may want to check out more software for Mac, such as Presto Builder, We Build SG or WebOS Quick Install, which might be related to webOS Theme Builder.
IDE