" Foreground colors
let b:black           = { "gui": "#303030", "cterm": "236" }
let b:red_fg          = { "gui": "#5f0000", "cterm":  "52" }

" Background colors
let b:light_gray      = { "gui": "#eeeeee", "cterm": "255" }
let b:md_gray         = { "gui": "#dadada", "cterm": "253" }
let b:dk_gray         = { "gui": "#c6c6c6", "cterm": "251" }
let b:cyan_bg         = { 'gui': '#afd7d7', 'cterm': '152' }
let b:red_bg          = { 'gui': '#ff8787', 'cterm': '210' }
let b:gold_bg         = { 'gui': '#ffd787', 'cterm': '222' }

" Color sets
let b:darker  = [ b:black.gui , b:dk_gray.gui    , b:black.cterm , b:dk_gray.cterm    ]
let b:dark    = [ b:black.gui , b:md_gray.gui    , b:black.cterm , b:md_gray.cterm    ]
let b:light   = [ b:black.gui , b:light_gray.gui , b:black.cterm , b:light_gray.cterm ]
let b:red     = [ b:black.gui , b:red_bg.gui     , b:black.cterm , b:red_bg.cterm     ]
let b:gold    = [ b:black.gui , b:gold_bg.gui    , b:black.cterm , b:gold_bg.cterm    ]
let b:cyan    = [ b:black.gui , b:cyan_bg.gui    , b:black.cterm , b:cyan_bg.cterm    ]

let g:airline#themes#mono#palette = {}

let g:airline#themes#mono#palette.accents = {
      \ 'red': [ b:red_fg.gui , '' , b:red_fg.cterm , '' ],
      \ }

" Normal Mode
let g:airline#themes#mono#palette.normal = airline#themes#generate_color_map(b:darker, b:dark, b:light)

" Insert Mode
let g:airline#themes#mono#palette.insert = copy(g:airline#themes#mono#palette.normal)
let g:airline#themes#mono#palette.insert.airline_a = b:gold

" Replace Mode
let g:airline#themes#mono#palette.replace = copy(g:airline#themes#mono#palette.normal)
let g:airline#themes#mono#palette.replace.airline_a = b:red

" Visual Mode
let g:airline#themes#mono#palette.visual = copy(g:airline#themes#mono#palette.normal)
let g:airline#themes#mono#palette.visual.airline_a = b:cyan

" Inactive
let g:airline#themes#mono#palette.inactive = airline#themes#generate_color_map(b:light, b:light, b:light)