diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py
index 38aaa00f3..b6d6a097d 100755
--- a/contrib/devtools/optimize-pngs.py
+++ b/contrib/devtools/optimize-pngs.py
@@ -1,5 +1,8 @@
 #!/usr/bin/env python
-
+'''
+Run this scrip every time you change one of the png files. Using pngcrush, it will optimize the png files, remove various color profiles, remove ancillary chunks (alla) and text chunks (text).
+#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
+'''
 import os
 import sys
 import subprocess
@@ -18,14 +21,12 @@ def content_hash(filename):
     data = i.tostring()
     return hashlib.sha256(data).hexdigest()
 
-#optimize png, remove various color profiles, remove ancillary chunks (alla) and text chunks (text)
-#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
-
 pngcrush = 'pngcrush'
 git = 'git'
-folders = ["src/qt/res/movies", "src/qt/res/icons", "src/qt/res/images"]
+folders = ["src/qt/res/movies", "src/qt/res/icons"]
 basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel']).rstrip('\n')
 totalSaveBytes = 0
+noHashChange = True
 
 outputArray = []
 for folder in folders:
@@ -68,6 +69,7 @@ for fileDict in outputArray:
     oldHash = fileDict['sha256Old']
     newHash = fileDict['sha256New']
     totalSaveBytes += fileDict['osize'] - fileDict['psize']
+    noHashChange = noHashChange and (oldHash == newHash)
     print fileDict['file']+"\n  size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n  old sha256: "+oldHash+"\n  new sha256: "+newHash+"\n"
     
-print "completed. Total reduction: "+str(totalSaveBytes)+" bytes"
+print "completed. Checksum stable: "+str(noHashChange)+". Total reduction: "+str(totalSaveBytes)+" bytes"
diff --git a/src/qt/res/icons/about_qt.png b/src/qt/res/icons/about_qt.png
index dd27a99d0..c40abfd3a 100644
Binary files a/src/qt/res/icons/about_qt.png and b/src/qt/res/icons/about_qt.png differ
diff --git a/src/qt/res/icons/clock1.png b/src/qt/res/icons/clock1.png
index ceae5ed0d..162204d1b 100644
Binary files a/src/qt/res/icons/clock1.png and b/src/qt/res/icons/clock1.png differ
diff --git a/src/qt/res/icons/clock2.png b/src/qt/res/icons/clock2.png
index 159f69a8f..8f4263a31 100644
Binary files a/src/qt/res/icons/clock2.png and b/src/qt/res/icons/clock2.png differ
diff --git a/src/qt/res/icons/clock3.png b/src/qt/res/icons/clock3.png
index d668e35ff..7f11a7566 100644
Binary files a/src/qt/res/icons/clock3.png and b/src/qt/res/icons/clock3.png differ
diff --git a/src/qt/res/icons/clock4.png b/src/qt/res/icons/clock4.png
index 5ebf8ed7a..fdd1a0fce 100644
Binary files a/src/qt/res/icons/clock4.png and b/src/qt/res/icons/clock4.png differ
diff --git a/src/qt/res/icons/clock5.png b/src/qt/res/icons/clock5.png
index 96f15ef7d..7d6556c6c 100644
Binary files a/src/qt/res/icons/clock5.png and b/src/qt/res/icons/clock5.png differ
diff --git a/src/qt/res/icons/transaction0.png b/src/qt/res/icons/transaction0.png
index 1091b86e6..72c44565e 100644
Binary files a/src/qt/res/icons/transaction0.png and b/src/qt/res/icons/transaction0.png differ
diff --git a/src/qt/res/icons/warning.png b/src/qt/res/icons/warning.png
index 723a30a65..6bc5ac789 100644
Binary files a/src/qt/res/icons/warning.png and b/src/qt/res/icons/warning.png differ
diff --git a/src/qt/res/src/clock_1.svg b/src/qt/res/src/clock_1.svg
index 4e49772d2..2a3d84c2d 100644
--- a/src/qt/res/src/clock_1.svg
+++ b/src/qt/res/src/clock_1.svg
@@ -9,5 +9,7 @@
 		c-57.8,0-112.1,22.5-153,63.4c-40.9,40.9-63.4,95.2-63.4,153c0,57.8,22.5,112.1,63.4,153c40.9,40.9,95.2,63.4,153,63.4
 		c57.8,0,112.1-22.5,153-63.4c40.9-40.9,63.4-95.2,63.4-153c0-57.8-22.5-112.1-63.4-153C409.8,227.1,355.4,204.6,297.6,204.6z"/>
 </g>
-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<path
+	d="M 478.3,253.4 297.6,184.6 c 0,0 0,78.8 0,118.2 0,117.5 -0.4,118.1 118.2,118.1 39.4,0 118.2,0 118.2,0 z"
+	id="polygon7" />
 </svg>
diff --git a/src/qt/res/src/clock_2.svg b/src/qt/res/src/clock_2.svg
index 995446e46..2de8d467b 100644
--- a/src/qt/res/src/clock_2.svg
+++ b/src/qt/res/src/clock_2.svg
@@ -9,6 +9,5 @@
 		c-57.8,0-112.1,22.5-153,63.4c-40.9,40.9-63.4,95.2-63.4,153c0,57.8,22.5,112.1,63.4,153c40.9,40.9,95.2,63.4,153,63.4
 		c57.8,0,112.1-22.5,153-63.4c40.9-40.9,63.4-95.2,63.4-153c0-57.8-22.5-112.1-63.4-153C409.8,227.1,355.4,204.6,297.6,204.6z"/>
 </g>
-<polygon points="465.2,601.6 534,420.9 297.6,420.9 297.6,657.3 "/>
-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<polygon points="465.2,601.6 534,420.9 478.3,253.4 297.6,184.6 297.6,420.9 297.6,657.3 "/>
 </svg>
diff --git a/src/qt/res/src/clock_3.svg b/src/qt/res/src/clock_3.svg
index ea47a8473..b691043e3 100644
--- a/src/qt/res/src/clock_3.svg
+++ b/src/qt/res/src/clock_3.svg
@@ -9,7 +9,7 @@
 		c-57.8,0-112.1,22.5-153,63.4c-40.9,40.9-63.4,95.2-63.4,153c0,57.8,22.5,112.1,63.4,153c40.9,40.9,95.2,63.4,153,63.4
 		c57.8,0,112.1-22.5,153-63.4c40.9-40.9,63.4-95.2,63.4-153c0-57.8-22.5-112.1-63.4-153C409.8,227.1,355.4,204.6,297.6,204.6z"/>
 </g>
-<polygon points="117,588.5 297.6,657.3 297.6,420.9 61.3,420.9 "/>
-<polygon points="465.2,601.6 534,420.9 297.6,420.9 297.6,657.3 "/>
-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<path
+	d="M 465.2,601.6 534,420.9 478.3,253.4 297.6,184.6 c 0,0 0,78.8 0,118.2 0,117.7 0.4,118.1 -118.1,118.1 -39.4,0 -118.2,0 -118.2,0 l 55.7,167.6 180.6,68.8 z"
+	id="polygon7" />
 </svg>
diff --git a/src/qt/res/src/clock_4.svg b/src/qt/res/src/clock_4.svg
index 43160288d..ea311f31e 100644
--- a/src/qt/res/src/clock_4.svg
+++ b/src/qt/res/src/clock_4.svg
@@ -1,18 +1,23 @@
-<?xml version="1.0" encoding="utf-8"?>
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-<svg version="1.1" id="Ebene_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-	 viewBox="0 0 841.9 841.9" enable-background="new 0 0 841.9 841.9" xml:space="preserve">
-<g>
-	<path d="M297.6,677.3c-68.5,0-132.9-26.7-181.3-75.1S41.3,489.4,41.3,420.9s26.7-132.9,75.1-181.3c48.4-48.4,112.8-75.1,181.3-75.1
-		s132.9,26.7,181.3,75.1c48.4,48.4,75.1,112.8,75.1,181.3s-26.7,132.9-75.1,181.3S366.1,677.3,297.6,677.3z M297.6,204.6
-		c-57.8,0-112.1,22.5-153,63.4c-40.9,40.9-63.4,95.2-63.4,153c0,57.8,22.5,112.1,63.4,153c40.9,40.9,95.2,63.4,153,63.4
-		c57.8,0,112.1-22.5,153-63.4c40.9-40.9,63.4-95.2,63.4-153c0-57.8-22.5-112.1-63.4-153C409.8,227.1,355.4,204.6,297.6,204.6z"/>
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-<path fill="#FFFFFF" d="M293.5,452.6h99.6c14.9,0,24.8-9.9,24.8-24.8S408,403,393.1,403h-74.8V278.2c0-14.9-9.9-24.8-24.8-24.8
-	c-14.9,0-24.8,9.9-24.8,24.8v149.6C268.7,440.2,278.7,452.6,293.5,452.6z"/>
-</svg>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xml:space="preserve"
+   enable-background="new 0 0 841.9 841.9"
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diff --git a/src/qt/res/src/qt.svg b/src/qt/res/src/qt.svg
index 9ef54f493..373c91f0c 100644
--- a/src/qt/res/src/qt.svg
+++ b/src/qt/res/src/qt.svg
@@ -1,25 +1,26 @@
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-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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-<g>
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+<svg
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diff --git a/src/qt/res/src/transaction0.svg b/src/qt/res/src/transaction0.svg
new file mode 100644
index 000000000..e7fcd8214
--- /dev/null
+++ b/src/qt/res/src/transaction0.svg
@@ -0,0 +1,35 @@
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+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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+   version="1.1"
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+   viewBox="0 0 128 127.9"
+   height="36.12mm"
+   width="36.12mm">
+  <defs
+     id="defs4144" />
+  <metadata
+     id="metadata4147">
+    <rdf:RDF>
+      <cc:Work
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