K, sinxce I needed some variant naming sanity for Teh Grand PlanTM, what I have done on local, and what will be in me next Evil CodeDumpalso TM n stuff is this:
// This is used for the color variants
$settings['theme_variants'] = array('light', 'dark', 'basic', 'blue', 'red', 'green');
..and this:
$txt['variant_light'] = 'ElkArte Light';
$txt['variant_dark'] = 'ElkArte Dark';
$txt['variant_basic'] = 'ElkArte Basic';
$txt['variant_red'] = 'Red Sector';
$txt['variant_green'] = 'Green Style';
$txt['variant_blue'] = 'Blue Sky';
..with suitable placeholder image folders and CSS files. Methinks this is good naming. I can just see the support board.
"Which theme are you using?"
"Ummm, it's the Elkarte theme. You know, the sort of white and green one that comes with the forum."

ETA: I'd suggest this:
Line 49: $txt['default_theme_name'] = 'ELKARTE Default Theme - Minimalist';
Be changed to this:
Line 49: $txt['default_theme_name'] = 'ElkArte Theme';