adjust lightness settings in theme gen scripts

app-config/ghostty/savanna-monobiome-light.config

@@ -0,0 +1,41 @@
+# base settings
+background = #f6f6ed
+foreground = #34332d
+
+selection-background = #e5e5dd
+selection-foreground = #404039
+
+cursor-color = #404039
+cursor-text = #e5e5dd
+
+# black
+palette = 0=#f6f6ed
+palette = 8=#d5d5cd
+
+# red
+palette = 1=#db4b3d
+palette = 9=#b62920
+
+# green
+palette = 2=#4e8757
+palette = 10=#396740
+
+# yellow
+palette = 3=#7f7a42
+palette = 11=#615d2f
+
+# blue
+palette = 4=#4f7dd5
+palette = 12=#365da9
+
+# magenta (red)
+palette = 5=#a4672a
+palette = 13=#7f4e1a
+
+# cyan (blue)
+palette = 6=#4f7dd5
+palette = 14=#365da9
+
+# white
+palette = 7=#4e4d47
+palette = 15=#34332d