the colouring should be removed from Template:2014 FIFA World Cup since none of the other world cup templates are using colouring.  the wp:deviations guidelines are not just about contrast, but about presenting a unified appearance that can be easily modified by changing css files.  the guidelines discourage the use of "titlestyle" and "basestyle" and encourage the use of "titleclass" and "baseclass", which are both set by .  there is no compelling reason to override the defaults.