Unified theme medium blog

[andrew-ronaldson]

This blog provides an introduction to the new Unified theme (name pending).

Overview:

• How we started
• Who is involved
• What's new in the new theme
• Point to design & developer handbooks
• Touch on what's next (One system)

Extract a high-level summary from this Blog from the blog for the 6.5 Release notes.

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Jira Issue: PF-3682