enable nyan-mode spacemacs?

Question

I was reading through:

Spacemacs Colors Layer

because I want to get nyan-mode working using the hot keys SPC t m n as shown on Github.

I was able to do this part:

To use this configuration layer, add it to your ~/.spacemacs. You  
will need to add **colors** to the existing dotspacemacs-configuration-
layers list in this file.

However I do not understand how to enable it.

where does

(setq-default dotspacemacs-configuration-layers '(
  (colors :variables colors-enable-nyan-cat-progress-bar t)))

go? I see nothing in my .spacemacs for it or am I missing how to do this completely?

Answer 1

Please (re)-read the FAQ and DOCUMENTATION.

But to add custom layers look for the following lines in your .spacemacs configuration file:

(defun dotspacemacs/layers()
  ...
    (setq-default
    ...
        dotspacemacs-configuration-layers
        '(
         ...
         ;; git
         ;; company
         ;; PLACE NEW CONFIGURATION LAYER HERE
         (colors: variables colors-enable-nyan-cat-progress-bar t)
     ...

Note that there could be text in between hence the ellipses "..."