Bug

fzf#vim#colors() throws E728: Using a Dictionary as a Number on line 614 of autoload/fzf/vim.vim when called with a spec dict as the first argument.

Cause

if !a:1 " We can't set up IPC in fullscreen mode in Vim

This assumes a:1 is always a number (<bang>0 from the :Colors command), but the function's public API accepts ([spec dict], [fullscreen bool]) — so a:1 can be a dictionary.

Steps to reproduce

:call fzf#vim#colors({})

Suggested fix

if a:0 && type(a:1) != s:TYPE.dict && !a:1

This matches how s:fzf() (line 322) already handles the same varargs pattern.

Version

Latest master (34a564c81f)

Introduced in 04bfa81157 ([Colors] Change color scheme on the fly (experimental)).