CHMM/CHMM2 and Themely have tumultuous history behind them due to fall out and controversy for their respective developers... The theme managers themselves work but are antique-ish for the primer and outdated for the latter.
From a comparison progression standpoint, it's kinda cool to see the GUI designs between CHMM2, Themely, and Anemone3DS.
I find the 3D banner for CHMM2 kinda neat as there's an easter egg in one of the windows.