Implement semantic theme color system

themes/ristretto/colors.toml

@@ -1,3 +1,5 @@
+mode = "dark"
+
 accent = "#f38d70"
 cursor = "#c3b7b8"
 foreground = "#e6d9db"
@@ -5,19 +7,28 @@ background = "#2c2525"
 selection_foreground = "#e6d9db"
 selection_background = "#403e41"
 
-color0 = "#72696a"
-color1 = "#fd6883"
-color2 = "#adda78"
-color3 = "#f9cc6c"
-color4 = "#f38d70"
-color5 = "#a8a9eb"
-color6 = "#85dacc"
-color7 = "#e6d9db"
-color8 = "#948a8b"
-color9 = "#ff8297"
-color10 = "#c8e292"
-color11 = "#fcd675"
-color12 = "#f8a788"
-color13 = "#bebffd"
-color14 = "#9bf1e1"
-color15 = "#f1e5e7"
+bg = "#2c2525"
+lighter_bg = "#3d2f2a"
+selection = "#403e41"
+muted = "#5b4a45"
+dark_fg = "#72696a"
+fg = "#948a8b"
+light_fg = "#c3b7b8"
+bright_fg = "#e6d9db"
+
+red = "#fd6883"
+yellow = "#f9cc6c"
+orange = "#fb9a77"
+green = "#adda78"
+cyan = "#85dacc"
+blue = "#f38d70"
+purple = "#a8a9eb"
+brown = "#7d4d3b"
+dark_bg = "#211b1b"
+darker_bg = "#181414"
+bright_red = "#ff8297"
+bright_yellow = "#fcd675"
+bright_green = "#c8e292"
+bright_cyan = "#9bf1e1"
+bright_blue = "#f8a788"
+bright_purple = "#bebffd"