adjust lightness settings in theme gen scripts

app-config/ghostty/grassland-monobiome-dark.config

@@ -0,0 +1,41 @@
+# base settings
+background = #232823
+foreground = #e0e7e0
+
+selection-background = #2f3430
+selection-foreground = #d0d6d0
+
+cursor-color = #d0d6d0
+cursor-text = #2f3430
+
+# black
+palette = 0=#232823
+palette = 8=#3c413c
+
+# red
+palette = 1=#e15344
+palette = 9=#fa8979
+
+# green
+palette = 2=#64a46e
+palette = 10=#8bc593
+
+# yellow
+palette = 3=#9e9858
+palette = 11=#bdb778
+
+# blue
+palette = 4=#5e8de4
+palette = 12=#8ab1f8
+
+# magenta (red)
+palette = 5=#c38141
+palette = 13=#dfa36d
+
+# cyan (blue)
+palette = 6=#5e8de4
+palette = 14=#8ab1f8
+
+# white
+palette = 7=#c0c6c0
+palette = 15=#e0e7e0