diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py
index 38aaa00f31..b6d6a097d6 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 dd27a99d0a..c40abfd3a6 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 ceae5ed0d9..162204d1bb 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 159f69a8fc..8f4263a31c 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 d668e35ffc..7f11a7566c 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 5ebf8ed7ac..fdd1a0fce3 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 96f15ef7d9..7d6556c6cf 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 1091b86e68..72c44565ec 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 723a30a658..6bc5ac7895 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 4e49772d26..2a3d84c2d0 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 995446e46e..2de8d467b7 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 ea47a84730..b691043e3e 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 43160288d8..ea311f31e8 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"
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diff --git a/src/qt/res/src/qt.svg b/src/qt/res/src/qt.svg
index 9ef54f493c..373c91f0c6 100644
--- a/src/qt/res/src/qt.svg
+++ b/src/qt/res/src/qt.svg
@@ -1,25 +1,26 @@
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-<g>
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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 0000000000..e7fcd8214c
--- /dev/null
+++ b/src/qt/res/src/transaction0.svg
@@ -0,0 +1,35 @@
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+   viewBox="0 0 128 127.9"
+   height="36.12mm"
+   width="36.12mm">
+  <defs
+     id="defs4144" />
+  <metadata
+     id="metadata4147">
+    <rdf:RDF>
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