diff --git a/PlistExplorer b/PlistExplorer
new file mode 100755
index 0000000..58491b0
Binary files /dev/null and b/PlistExplorer differ
diff --git a/find-unused-images b/find-unused-images
new file mode 100755
index 0000000..dc1ce31
--- /dev/null
+++ b/find-unused-images
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+for i in `find . -name "*.png" -o -name "*.jpg"`; do
+ file=`basename -s .jpg "$i" | xargs basename -s .png | xargs basename -s @2x | xargs basename -s @3x`
+ result=`ack -i "$file"`
+ if [ -z "$result" ]; then
+ echo "$i"
+ fi
+done
diff --git a/generate-xcode-imageset b/generate-xcode-imageset
new file mode 100755
index 0000000..60a39d0
--- /dev/null
+++ b/generate-xcode-imageset
@@ -0,0 +1,48 @@
+#!/usr/bin/env ruby -w
+
+require 'json'
+
+def main
+  while dir = ARGV.shift
+    unless File.directory? dir
+      puts "[warn] Skipping non-directory: #{dir}"
+      next
+    end
+
+    all_images = Dir[File.join(dir, '*@[23]x.png')].map { |f| File.basename f }
+    image3x = File.basename Dir[File.join(dir, '*@3x.png')].first
+    image2x = File.basename  Dir[File.join(dir, '*@2x.png')].first
+    image1x = (all_images - [image2x, image3x]).first
+    unless [2, 3].include?(all_images.size) && image2x && image3x
+      puts "[warn] Skipping #{dir} because 2x and 3x images are required. 1x image is optional. Max 3 images."
+      next
+    end
+
+    images = [image1x, image2x, image3x]
+    scale = 0
+    imageset_images = images
+      .map { |filename|
+        scale += 1
+        filename && {
+          idiom: 'universal',
+          filename: filename,
+          scale: "#{scale}x"
+        }
+      }
+      .compact
+    imageset = {
+      images: imageset_images,
+      info: {
+        version: 1,
+        author: 'generate-xcode-imageset'
+      }
+    }
+    json = JSON.pretty_generate(imageset)
+    path = File.join(dir, 'Contents.json')
+    File.write(path, json)
+    images_written = images.compact
+    puts "* Wrote #{images_written.size} images to #{path}: #{images_written.join(', ')}"
+  end
+end
+
+main if $0 == __FILE__
diff --git a/svg-to-ios-pngs.rb b/svg-to-ios-pngs.rb
new file mode 100755
index 0000000..43ec021
--- /dev/null
+++ b/svg-to-ios-pngs.rb
@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby -w
+
+svg_path = ARGV.shift
+png_path = ARGV.shift
+
+png_test_path = "/tmp/identify.png"
+File.unlink(png_test_path) if File.exist?(png_test_path)
+puts `inkscape -z -e '#{png_test_path}' -d 72 '#{svg_path}'`
+info = `identify '#{png_test_path}'`
+File.unlink(png_test_path) if File.exist?(png_test_path)
+dimensions = info.split[2]
+width, height = dimensions.split('x').map(&:to_i)
+if width == 0 || height == 0
+  $stderr.puts "Failed to get SVG dimensions"
+  exit 1
+end
+
+name = File.basename(svg_path).sub /\.svg$/, ''
+
+png_2x_path = File.join(png_path, "#{name}@2x.png")
+puts `inkscape -z -e '#{png_2x_path}' -w #{2 * width} -h #{2 * height} -d 72 '#{svg_path}'`
+
+png_3x_path = File.join(png_path, "#{name}@3x.png")
+puts `inkscape -z -e '#{png_3x_path}' -w #{3 * width} -h #{3 * height} -d 27 '#{svg_path}'`