As much as I aesthetically like the ZFI layout, the darker colours they use tend to have an unwanted psychological impact on participants. This was one of the common themes observed and commented on by members at Dharma Wheel when we, for an extended period of time, had rather dark colours prevailing. It was actually Nana (Geoff) who brought it to our attention that the colour scheme there was inappropriate, and feedback from others confirmed his intent.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)