implement a script for inverting the SJJB SVG Map Icons

Author: tuukka

Diff for: utils/recolor.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+sed -i -e 's/fill:#\(111\|111111\)/fill:#111111;fill-opacity:0.0/g' "$1"
+sed -i -e 's/fill:#\(fff\|ffffff\)/fill:#111111/g' "$1"
+sed -i -e 's/stroke:#\(fff\|ffffff\)/stroke:#111111/g' "$1"
+sed -i -e 's/stroke:#\(eee\|eeeeee\)/stroke:#eeeeee;stroke-opacity:0.0/g' "$1"