diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py
index 38aaa00f312..b6d6a097d6d 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 dd27a99d0a7..c40abfd3a6c 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 ceae5ed0d9f..162204d1bba 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 159f69a8fce..8f4263a31cc 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 d668e35ffc0..7f11a7566c1 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 5ebf8ed7ac7..fdd1a0fce34 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 96f15ef7d95..7d6556c6cf7 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 1091b86e688..72c44565ec3 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 723a30a658a..6bc5ac78952 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 4e49772d26a..2a3d84c2d04 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 995446e46e3..2de8d467b75 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 ea47a847300..b691043e3e7 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 43160288d8a..ea311f31e82 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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-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<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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-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
-<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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+     id="polygon7"
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diff --git a/src/qt/res/src/qt.svg b/src/qt/res/src/qt.svg
index 9ef54f493cd..373c91f0c6c 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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+<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 00000000000..e7fcd8214cb
--- /dev/null
+++ b/src/qt/res/src/transaction0.svg
@@ -0,0 +1,35 @@
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+   width="36.12mm">
+  <defs
+     id="defs4144" />
+  <metadata
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