Add Sonokai theme.

See details in sainnhe/sonokai#115.

README.md

@@ -160,6 +160,7 @@ configuration file.
 |                                      **_solarized_dark_**<br>[source](http://ethanschoonover.com/solarized)                                       |        ![solarized_dark](images/solarized_dark.png)        |
 |                                      **_solarized_light_**<br>[source](http://ethanschoonover.com/solarized)                                      |       ![solarized_light](images/solarized_light.png)       |
 |                               **_solarized_osaka_**<br>[source](https://github.com/craftzdog/solarized-osaka.nvim)                                |     ![solarized_osaka](images/solarized_osaka.png)         |
+|                                           **_sonokai_**<br>[source](https://github.com/sainnhe/sonokai)                                           |               ![sonokai](images/sonokai.png)               |
 |                                   **_spacegray_**<br>[source](https://github.com/SublimeText/Spacegray)                                           |            ![spacegray](images/spacegray.png)
 |                                   **_synthwave_84_**<br>[source](https://github.com/robb0wen/synthwave-vscode)                                    |        ![synthwave_84](images/synthwave_84.png)            |
 |                                    **_taerminal_**<br>[source](https://github.com/cozywigwam/iterm-taerminal)                                     |             ![taerminal](images/taerminal.png)             |

themes/sonokai.toml

@@ -0,0 +1,40 @@
+# sonokai.toml: Sonokai color scheme for Alacritty.
+#
+# See https://github.com/sainnhe/sonokai. Comments specify the color names from
+# the Sonokai color palette:
+# - ANSI colors are the Vim terminal colors
+# - Cursor color is the Vim auto `Cursor` highlight (inverts `fg` and `bg0`)
+# - Selection background is the Vim `Visual` highlight
+# - Selection text foreground doesn't change
+
+[colors.primary]
+foreground = "#e2e2e3"  # fg
+background = "#2c2e34"  # bg0
+
+[colors.normal]
+black = "#181819"  # black
+red = "#fc5d7c"  # red
+green = "#9ed072"  # green
+yellow = "#e7c664"  # yellow
+blue = "#76cce0"  # blue
+magenta = "#b39df3"  # purple
+cyan = "#f39660"  # orange
+white = "#e2e2e3"  # fg
+
+[colors.bright]
+black = "#7f8490"  # gray
+red = "#fc5d7c"  # red
+green = "#9ed072"  # green
+yellow = "#e7c664"  # yellow
+blue = "#76cce0"  # blue
+magenta = "#b39df3"  # purple
+cyan = "#f39660"  # orange
+white = "#e2e2e3"  # fg
+
+[colors.cursor]
+text = "#2c2e34"  # bg0
+cursor = "#e2e2e3"  # fg
+
+[colors.selection]
+text = "CellForeground"
+background = "#414550"  # bg4