diff --git a/autoload/airline/themes/seagull.vim b/autoload/airline/themes/seagull.vim
new file mode 100644
index 0000000..7fa0a0a
--- /dev/null
+++ b/autoload/airline/themes/seagull.vim
@@ -0,0 +1,189 @@
+" Airline theme for Seabird/Seagull:
+" https://github.com/nightsense/seabird/blob/master/colors/seagull.vim
+"
+" Based on Solarized theme code:
+" https://github.com/vim-airline/vim-airline-themes/blob/master/autoload/airline/themes/solarized.vim
+let g:airline#themes#seagull#palette = {}
+
+function! airline#themes#seagull#refresh()
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Options
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ let s:background = get(g:, 'airline_seagull_bg', &background)
+ let s:ansi_colors = get(g:, 'seagull_termcolors', 16) != 256 && &t_Co >= 16 ? 1 : 0
+ let s:use_green = get(g:, 'airline_seagull_normal_green', 0)
+ let s:dark_inactive_border = get(g:, 'airline_seagull_dark_inactive_border', 0)
+ let s:tty = &t_Co == 8
+
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Colors
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Base colors
+ let s:base03 = {'t': 234, 'g': '#0b141a'}
+ let s:base02 = {'t': 235, 'g': '#1d252b'}
+ let s:base01 = {'t': 240, 'g': '#61707a'}
+ let s:base00 = {'t': 241, 'g': '#6d767d'}
+ let s:base0 = {'t': 244, 'g': '#787e82'}
+ let s:base1 = {'t': 245, 'g': '#808487'}
+ let s:base2 = {'t': 254, 'g': '#e6eaed'}
+ let s:base3 = {'t': 230, 'g': '#ffffff'}
+ let s:yellow = {'t': 136, 'g': '#bf8c00'}
+ let s:orange = {'t': 166, 'g': '#ff6200'}
+ let s:red = {'t': 160, 'g': '#ff4053'}
+ let s:magenta = {'t': 125, 'g': '#ff549b'}
+ let s:violet = {'t': 61, 'g': '#9854ff'}
+ let s:blue = {'t': 33, 'g': '#0099ff'}
+ let s:cyan = {'t': 37, 'g': '#00a5ab'}
+ let s:green = {'t': 64, 'g': '#11ab00'}
+
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Simple mappings
+ " NOTE: These are easily tweakable mappings. The actual mappings get
+ " the specific gui and terminal colors from the base color dicts.
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Normal mode
+ if s:background == 'dark'
+ let s:N1 = [s:base3, (s:use_green ? s:green : s:base1), 'bold']
+ let s:N2 = [s:base2, (s:tty ? s:base01 : s:base00), '']
+ let s:N3 = [s:base01, s:base02, '']
+ else
+ let s:N1 = [s:base2, (s:use_green ? s:green : s:base00), 'bold']
+ let s:N2 = [(s:tty ? s:base01 : s:base2), s:base1, '']
+ let s:N3 = [s:base1, s:base2, '']
+ endif
+ let s:NF = [s:orange, s:N3[1], '']
+ let s:NW = [s:base3, s:orange, '']
+ if s:background == 'dark'
+ let s:NM = [s:base1, s:N3[1], '']
+ let s:NMi = [s:base2, s:N3[1], '']
+ else
+ let s:NM = [s:base01, s:N3[1], '']
+ let s:NMi = [s:base02, s:N3[1], '']
+ endif
+
+ " Insert mode
+ let s:I1 = [s:N1[0], s:cyan, 'bold']
+ let s:I2 = s:N2
+ let s:I3 = s:N3
+ let s:IF = s:NF
+ let s:IM = s:NM
+
+ " Visual mode
+ let s:V1 = [s:N1[0], s:green, 'bold']
+ let s:V2 = s:N2
+ let s:V3 = s:N3
+ let s:VF = s:NF
+ let s:VM = s:NM
+
+ " Replace mode
+ let s:R1 = [s:N1[0], s:red, '']
+ let s:R2 = s:N2
+ let s:R3 = s:N3
+ let s:RM = s:NM
+ let s:RF = s:NF
+
+ " Inactive, according to VertSplit in seagull
+ " (bg dark: base00; bg light: base0)
+ if s:background == 'dark'
+ if s:dark_inactive_border
+ let s:IA = [s:base01, s:base02, '']
+ else
+ let s:IA = [s:base02, s:base00, '']
+ endif
+ else
+ let s:IA = [s:base2, s:base0, '']
+ endif
+
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ " Actual mappings
+ " WARNING: Don't modify this section unless necessary.
+ """"""""""""""""""""""""""""""""""""""""""""""""
+ let s:NFa = [s:NF[0].g, s:NF[1].g, s:NF[0].t, s:NF[1].t, s:NF[2]]
+ let s:IFa = [s:IF[0].g, s:IF[1].g, s:IF[0].t, s:IF[1].t, s:IF[2]]
+ let s:VFa = [s:VF[0].g, s:VF[1].g, s:VF[0].t, s:VF[1].t, s:VF[2]]
+ let s:RFa = [s:RF[0].g, s:RF[1].g, s:RF[0].t, s:RF[1].t, s:RF[2]]
+
+ let g:airline#themes#seagull#palette.accents = {
+ \ 'red': s:NFa,
+ \ }
+
+ let g:airline#themes#seagull#palette.inactive = airline#themes#generate_color_map(
+ \ [s:IA[0].g, s:IA[1].g, s:IA[0].t, s:IA[1].t, s:IA[2]],
+ \ [s:IA[0].g, s:IA[1].g, s:IA[0].t, s:IA[1].t, s:IA[2]],
+ \ [s:IA[0].g, s:IA[1].g, s:IA[0].t, s:IA[1].t, s:IA[2]])
+ let g:airline#themes#seagull#palette.inactive_modified = {
+ \ 'airline_c': [s:NMi[0].g, '', s:NMi[0].t, '', s:NMi[2]]}
+
+ let g:airline#themes#seagull#palette.normal = airline#themes#generate_color_map(
+ \ [s:N1[0].g, s:N1[1].g, s:N1[0].t, s:N1[1].t, s:N1[2]],
+ \ [s:N2[0].g, s:N2[1].g, s:N2[0].t, s:N2[1].t, s:N2[2]],
+ \ [s:N3[0].g, s:N3[1].g, s:N3[0].t, s:N3[1].t, s:N3[2]])
+
+ let g:airline#themes#seagull#palette.normal.airline_warning = [
+ \ s:NW[0].g, s:NW[1].g, s:NW[0].t, s:NW[1].t, s:NW[2]]
+
+ let g:airline#themes#seagull#palette.normal.airline_error = [
+ \ s:NW[0].g, s:NW[1].g, s:NW[0].t, s:NW[1].t, s:NW[2]]
+
+ let g:airline#themes#seagull#palette.normal_modified = {
+ \ 'airline_c': [s:NM[0].g, s:NM[1].g,
+ \ s:NM[0].t, s:NM[1].t, s:NM[2]]}
+
+ let g:airline#themes#seagull#palette.normal_modified.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.insert = airline#themes#generate_color_map(
+ \ [s:I1[0].g, s:I1[1].g, s:I1[0].t, s:I1[1].t, s:I1[2]],
+ \ [s:I2[0].g, s:I2[1].g, s:I2[0].t, s:I2[1].t, s:I2[2]],
+ \ [s:I3[0].g, s:I3[1].g, s:I3[0].t, s:I3[1].t, s:I3[2]])
+
+ let g:airline#themes#seagull#palette.insert.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.insert_modified = {
+ \ 'airline_c': [s:IM[0].g, s:IM[1].g,
+ \ s:IM[0].t, s:IM[1].t, s:IM[2]]}
+
+ let g:airline#themes#seagull#palette.insert_modified.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.visual = airline#themes#generate_color_map(
+ \ [s:V1[0].g, s:V1[1].g, s:V1[0].t, s:V1[1].t, s:V1[2]],
+ \ [s:V2[0].g, s:V2[1].g, s:V2[0].t, s:V2[1].t, s:V2[2]],
+ \ [s:V3[0].g, s:V3[1].g, s:V3[0].t, s:V3[1].t, s:V3[2]])
+
+ let g:airline#themes#seagull#palette.visual.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.visual_modified = {
+ \ 'airline_c': [s:VM[0].g, s:VM[1].g,
+ \ s:VM[0].t, s:VM[1].t, s:VM[2]]}
+
+ let g:airline#themes#seagull#palette.visual_modified.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.replace = airline#themes#generate_color_map(
+ \ [s:R1[0].g, s:R1[1].g, s:R1[0].t, s:R1[1].t, s:R1[2]],
+ \ [s:R2[0].g, s:R2[1].g, s:R2[0].t, s:R2[1].t, s:R2[2]],
+ \ [s:R3[0].g, s:R3[1].g, s:R3[0].t, s:R3[1].t, s:R3[2]])
+
+ let g:airline#themes#seagull#palette.replace.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.replace_modified = {
+ \ 'airline_c': [s:RM[0].g, s:RM[1].g,
+ \ s:RM[0].t, s:RM[1].t, s:RM[2]]}
+
+ let g:airline#themes#seagull#palette.replace_modified.airline_warning =
+ \ g:airline#themes#seagull#palette.normal.airline_warning
+
+ let g:airline#themes#seagull#palette.tabline = {}
+
+ let g:airline#themes#seagull#palette.tabline.airline_tab = [
+ \ s:I2[0].g, s:I2[1].g, s:I2[0].t, s:I2[1].t, s:I2[2]]
+
+ let g:airline#themes#seagull#palette.tabline.airline_tabtype = [
+ \ s:N2[0].g, s:N2[1].g, s:N2[0].t, s:N2[1].t, s:N2[2]]
+endfunction
+
+call airline#themes#seagull#refresh()
diff --git a/doc/airline-themes.txt b/doc/airline-themes.txt
index 4379171..864097f 100644
--- a/doc/airline-themes.txt
+++ b/doc/airline-themes.txt
@@ -108,6 +108,7 @@ Currently this repository contains the following themes:
* qwq
* raven
* ravenpower
+ * seagull
* serene
* sierra
* silver