Implement semantic theme color system

themes/everforest/colors.toml

@@ -1,3 +1,5 @@
+mode = "dark"
+
 accent = "#7fbbb3"
 cursor = "#d3c6aa"
 foreground = "#d3c6aa"
@@ -5,19 +7,28 @@ background = "#2d353b"
 selection_foreground = "#2d353b"
 selection_background = "#d3c6aa"
 
-color0 = "#475258"
-color1 = "#e67e80"
-color2 = "#a7c080"
-color3 = "#dbbc7f"
-color4 = "#7fbbb3"
-color5 = "#d699b6"
-color6 = "#83c092"
-color7 = "#d3c6aa"
-color8 = "#475258"
-color9 = "#e67e80"
-color10 = "#a7c080"
-color11 = "#dbbc7f"
-color12 = "#7fbbb3"
-color13 = "#d699b6"
-color14 = "#83c092"
-color15 = "#d3c6aa"
+bg = "#2d353b"
+lighter_bg = "#343f44"
+selection = "#3d484d"
+muted = "#475258"
+dark_fg = "#4f585e"
+fg = "#7a8478"
+light_fg = "#9da9a0"
+bright_fg = "#d3c6aa"
+
+red = "#e67e80"
+yellow = "#dbbc7f"
+orange = "#e09d7f"
+green = "#a7c080"
+cyan = "#83c092"
+blue = "#7fbbb3"
+purple = "#d699b6"
+brown = "#704e3f"
+dark_bg = "#21272c"
+darker_bg = "#181d20"
+bright_red = "#e67e80"
+bright_yellow = "#dbbc7f"
+bright_green = "#a7c080"
+bright_cyan = "#83c092"
+bright_blue = "#7fbbb3"
+bright_purple = "#d699b6"