Add replace_color.sh

replace_colors.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [ "$#" -ne 4 ]; then
+  echo "Usage: $0 <filename> <new_bg> <new_fg> <new_shadow>"
+  exit 1
+fi
+
+filename=$1
+new_bg=$2
+new_fg=$3
+new_shadow=$4
+
+sed -i "s/#222222/#$new_bg/g" "$filename"
+sed -i "s/#444444/#$new_fg/g" "$filename"
+sed -i "s/#262626/#$new_shadow/g" "$filename"
+
+echo "Colors replaced in $filename: bg=$new_bg, fg=$new_fg, shadow=$new_shadow"