Add "Themes" section on README

README.md

@@ -34,6 +34,90 @@ map <leader>l :RainbowLevelsToggle<cr>
 au FileType javascript,python,php,xml,yaml :RainbowLevelsOn
 ```
 
+In addition to the commands mentioned above, it also exposes a global variable
+`g:rainbow_levels` that can be overridden to change the highlight color of each
+level.
+
+By default there are only 8 different levels, but feel free to add as many as
+you need, the plugin takes into account the amount of entries on `g:rainbow_levels`.
+
+## Themes
+
+<img align="right" width="50%" title="Jellybeans Theme" src="https://thiagoalessio.ams3.digitaloceanspaces.com/rainbow_levels/theme-jellybeans.png"/>
+
+### [Jellybeans][]
+
+```vim
+let g:rainbow_levels = [
+    \{'ctermfg': 121, 'guifg': '#65c254'},
+    \{'ctermfg': 81,  'guifg': '#8fbfdc'},
+    \{'ctermfg': 11,  'guifg': '#8197bf'},
+    \{'ctermfg': 14,  'guifg': '#c6b6ee'},
+    \{'ctermfg': 13,  'guifg': '#cf6a4c'},
+    \{'ctermfg': 121, 'guifg': '#ffb964'},
+    \{'ctermfg': 7,   'guifg': '#e8e8d3'},
+    \{'ctermfg': 14,  'guifg': '#888888'}]
+```
+
+<br/><br/><br/>
+---
+
+<img align="right" width="50%" title="Zenburn Theme" src="https://thiagoalessio.ams3.digitaloceanspaces.com/rainbow_levels/theme-zenburn.png"/>
+
+### [Zenburn][]
+
+```vim
+let g:rainbow_levels = [
+    \{'ctermfg': 108, 'guifg': '#7f9f7f'},
+    \{'ctermfg': 116, 'guifg': '#8cd0d3'},
+    \{'ctermfg': 109, 'guifg': '#9fafaf'},
+    \{'ctermfg': 174, 'guifg': '#cc9393'},
+    \{'ctermfg': 223, 'guifg': '#ffd7a7'},
+    \{'ctermfg': 228, 'guifg': '#efef8f'},
+    \{'ctermfg': 230, 'guifg': '#f0efd0'},
+    \{'ctermfg': 240, 'guifg': '#5b605e'}]
+```
+
+<br/><br/><br/>
+---
+
+<img align="right" width="50%" title="Solarized Theme" src="https://thiagoalessio.ams3.digitaloceanspaces.com/rainbow_levels/theme-solarized.png"/>
+
+### [Solarized][]
+
+```vim
+let g:rainbow_levels = [
+    \{'ctermfg': 2, 'guifg': '#859900'},
+    \{'ctermfg': 6, 'guifg': '#2aa198'},
+    \{'ctermfg': 4, 'guifg': '#268bd2'},
+    \{'ctermfg': 5, 'guifg': '#6c71c4'},
+    \{'ctermfg': 1, 'guifg': '#dc322f'},
+    \{'ctermfg': 3, 'guifg': '#b58900'},
+    \{'ctermfg': 8, 'guifg': '#839496'},
+    \{'ctermfg': 7, 'guifg': '#586e75'}]
+```
+
+<br/><br/><br/>
+---
+
+<img align="right" width="50%" title="Dracula Theme" src="https://thiagoalessio.ams3.digitaloceanspaces.com/rainbow_levels/theme-dracula.png"/>
+
+### [Dracula][]
+
+```vim
+let g:rainbow_levels = [
+    \{'ctermfg': 84,  'guifg': '#50fa7b'},
+    \{'ctermfg': 117, 'guifg': '#8be9fd'},
+    \{'ctermfg': 61,  'guifg': '#6272a4'},
+    \{'ctermfg': 212, 'guifg': '#ff79c6'},
+    \{'ctermfg': 203, 'guifg': '#ffb86c'},
+    \{'ctermfg': 228, 'guifg': '#f1fa8c'},
+    \{'ctermfg': 15,  'guifg': '#f8f8f2'},
+    \{'ctermfg': 231, 'guifg': '#525563'}]
+```
+
+<br/><br/><br/>
+
 ## Where to get help
 
 Join the chat at <https://gitter.im/thiagoalessio/rainbow_levels.vim>
@@ -46,4 +130,8 @@ rainbow_levels.vim is released under the [MIT License][].
 [gitter]: https://gitter.im/thiagoalessio/rainbow_levels.vim?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
 [license_badge]: https://img.shields.io/badge/License-MIT-yellow.svg
 [mit_license]: https://opensource.org/licenses/MIT
+[Jellybeans]: https://github.com/nanotech/jellybeans.vim
+[Zenburn]: http://kippura.org/zenburnpage/
+[Solarized]: http://ethanschoonover.com/solarized
+[Dracula]: https://draculatheme.com/
 [MIT License]: https://github.com/thiagoalessio/rainbow_levels.vim/blob/master/MIT-LICENSE