Define gruvbox8 style.

Color scheme copied from lifepillar/vim-gruvbox8.

styles/gruvbox8.conf

@@ -0,0 +1,21 @@
+font = "Hack Regular 12"
+
+foreground-color = "#ebdbb2"
+background-color = "#1d2021"
+
+ansi-colors-black  = "#1d2021"
+ansi-colors-red    = "#cc241d"
+ansi-colors-green  = "#98971a"
+ansi-colors-yellow = "#d79921"
+ansi-colors-blue   = "#458588"
+ansi-colors-purple = "#b16286"
+ansi-colors-cyan   = "#689d6a"
+ansi-colors-white  = "#a89984"
+ansi-colors-bright-black  = "#928374"
+ansi-colors-bright-red    = "#fb4934"
+ansi-colors-bright-green  = "#b8bb26"
+ansi-colors-bright-yellow = "#fabd2f"
+ansi-colors-bright-blue   = "#83a598"
+ansi-colors-bright-purple = "#d3869b"
+ansi-colors-bright-cyan   = "#8ec07c"
+ansi-colors-bright-white  = "#ebdbb2"