Comment are not green with dark mode theme

[TheEpicFace007]

I am expecting to have the comment to be wrote in green when I use the dark theme of paper color however it is isn't green. What should I do?

Here is my theme config:

set t_Co=256
set background=dark
colorscheme PaperColor
let g:lightline = { 'colorscheme': 'PaperColor' }