The only thing that I'm not sure of is if MyColors in included in ObjectDesktop anymore.
Not really. MyColors is becoming more of an OEM solution, with ThemeManager taking it's place in Object Desktop. Really it makes more sense, as ThemeManager gives you more control over what your theme will be,
don't think there's any CPU or Memory meter with the theme
Nope. Media Players, Calendars, Clocks and Weather. Can't think of any others with MyColors, although there may be exceptions to the rule.