How do I set the color of all descriptions to one color, but keep the different group colors?

[mawkler]

Hi! I'm using the recommended configuration from the README:

# disable sort when completing `git checkout`
zstyle ':completion:*:git-checkout:*' sort false
# set descriptions format to enable group support
zstyle ':completion:*:descriptions' format '[%d]'
# set list-colors to enable filename colorizing
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
# preview directory's content with exa when completing cd
zstyle ':fzf-tab:complete:cd:*' fzf-preview 'exa -1 --color=always $realpath'
# switch group using `,` and `.`
zstyle ':fzf-tab:*' switch-group ',' '.'

I would like to set the description of all commands to be dark gray, but keep the colors of the commands/filenames/etc.

Is this possible?