I was searching for a guide on how to write a color scheme, when I found this question. So I created a colorscheme for vim using Vivify, but when I try to use it an error occurs on the following line:
hi cterm=.((s:fontface==plain) ? none : bold) guifg=#efface guibg=#efface guisp=#efface gui=NONE ctermfg=230 ctermbg=230 cterm=NONE
and it is about a missing equal sign.
I add a link to the .vim file as suggested by @Carolyn C.