diff --git a/bitmaps_png/CMakeLists.txt b/bitmaps_png/CMakeLists.txt
index b9a4bb3cff..23ecf68c09 100644
--- a/bitmaps_png/CMakeLists.txt
+++ b/bitmaps_png/CMakeLists.txt
@@ -345,6 +345,7 @@ set( BMAPS_MID
     load_module_board
     load_module_lib
     local_ratsnest
+    lock_unlock
     locked
     measurement
     minus
diff --git a/bitmaps_png/cpp_26/lock_unlock.cpp b/bitmaps_png/cpp_26/lock_unlock.cpp
new file mode 100644
index 0000000000..89695add67
--- /dev/null
+++ b/bitmaps_png/cpp_26/lock_unlock.cpp
@@ -0,0 +1,40 @@
+
+/* Do not modify this file, it was automatically generated by the
+ * PNG2cpp CMake script, using a *.png file as input.
+ */
+
+#include <bitmaps.h>
+
+static const unsigned char png[] = {
+ 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
+ 0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0x1a, 0x08, 0x06, 0x00, 0x00, 0x00, 0xa9, 0x4a, 0x4c,
+ 0xce, 0x00, 0x00, 0x01, 0x6c, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0xed, 0x96, 0x41, 0x4e, 0xc2,
+ 0x40, 0x14, 0x86, 0x89, 0x17, 0xe0, 0x0c, 0x24, 0xba, 0x10, 0xd8, 0x72, 0x0d, 0xb8, 0x82, 0x96,
+ 0xa4, 0xab, 0x76, 0x26, 0x8d, 0x3b, 0x63, 0x08, 0x89, 0xc6, 0xd4, 0xb4, 0x55, 0xd0, 0xa5, 0xb2,
+ 0x82, 0x5b, 0xc8, 0xce, 0x13, 0xb0, 0x29, 0xac, 0x75, 0xd1, 0x4d, 0x17, 0x6c, 0x80, 0x92, 0x90,
+ 0x0c, 0xef, 0x9f, 0xb4, 0x2b, 0x3b, 0xd4, 0x58, 0x4a, 0x8c, 0x4a, 0xf2, 0x85, 0x97, 0x79, 0x2f,
+ 0xff, 0x97, 0x29, 0xc3, 0xa4, 0xa5, 0xd2, 0x9f, 0xf9, 0x3c, 0x19, 0x46, 0xa5, 0xcf, 0x98, 0xd7,
+ 0x63, 0x6c, 0xd2, 0xe7, 0x7c, 0x0e, 0x64, 0x4d, 0x6b, 0xe8, 0x25, 0x73, 0x86, 0x63, 0x54, 0x98,
+ 0xc3, 0x3c, 0xe6, 0xb2, 0x09, 0x77, 0xf9, 0x1c, 0xa0, 0xc6, 0x1a, 0x7a, 0x3b, 0x25, 0x14, 0xd6,
+ 0xa2, 0xd0, 0x25, 0x21, 0x14, 0x2c, 0x7a, 0x9c, 0x37, 0x29, 0xac, 0x45, 0xa1, 0x4b, 0x42, 0xa4,
+ 0xe2, 0xb1, 0x05, 0xf7, 0x78, 0x53, 0x25, 0x39, 0xa1, 0xa0, 0x55, 0x1c, 0x38, 0xa4, 0xc0, 0x86,
+ 0xad, 0xeb, 0x65, 0x80, 0x9a, 0xfa, 0x23, 0xf4, 0x1e, 0x38, 0x8b, 0x2e, 0xee, 0x78, 0x24, 0x03,
+ 0x1d, 0x36, 0xa4, 0x9d, 0x34, 0x74, 0x5b, 0x2f, 0x03, 0xd4, 0xb4, 0x3e, 0x8a, 0x85, 0x2b, 0xeb,
+ 0xde, 0x3a, 0xfe, 0x24, 0xa2, 0x90, 0x17, 0x04, 0x51, 0xe0, 0x60, 0xc7, 0x8e, 0x07, 0x98, 0xb9,
+ 0xbe, 0x94, 0x41, 0xca, 0x39, 0xf4, 0x62, 0xd9, 0x73, 0x9a, 0xe8, 0x03, 0x21, 0x8f, 0xa6, 0x59,
+ 0x55, 0x05, 0xa0, 0x87, 0x19, 0xcf, 0x62, 0xc2, 0x74, 0xd5, 0x73, 0xe8, 0x41, 0x44, 0xdf, 0xef,
+ 0x69, 0xa2, 0x0d, 0x42, 0xba, 0xdd, 0xee, 0x91, 0x2a, 0x00, 0xbd, 0xf8, 0xf1, 0x65, 0xce, 0xc5,
+ 0x3b, 0xda, 0xa4, 0x89, 0xe4, 0x0f, 0x9e, 0x75, 0x2a, 0xbf, 0x3a, 0x97, 0x1c, 0x8c, 0x7f, 0x51,
+ 0x3e, 0xd1, 0x69, 0xad, 0x66, 0x13, 0x6b, 0x42, 0x7c, 0x93, 0x75, 0xb5, 0x5e, 0xbf, 0x55, 0x88,
+ 0xde, 0x40, 0x22, 0xca, 0x23, 0x49, 0x88, 0x32, 0xef, 0xb5, 0x3d, 0x48, 0x24, 0xb9, 0x44, 0x5a,
+ 0xbb, 0x2d, 0xa6, 0xb3, 0x99, 0xf0, 0xa7, 0x53, 0x71, 0x4e, 0x75, 0x61, 0x22, 0x08, 0xc2, 0x30,
+ 0x94, 0xf8, 0xbe, 0xff, 0x0b, 0x44, 0x78, 0x5c, 0x41, 0x10, 0x48, 0xce, 0x34, 0xad, 0x38, 0x11,
+ 0x78, 0x1d, 0x8f, 0x25, 0x85, 0x1e, 0x86, 0x83, 0x8a, 0xae, 0x3a, 0x1d, 0x49, 0xe1, 0xa2, 0x7d,
+ 0xfe, 0x8f, 0x0e, 0x73, 0x33, 0xe0, 0x9e, 0xca, 0x7b, 0xd7, 0x11, 0x37, 0x3f, 0xe2, 0xf5, 0x6d,
+ 0x0b, 0x54, 0xe3, 0x75, 0x92, 0x1e, 0x22, 0x94, 0xee, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e,
+ 0x44, 0xae, 0x42, 0x60, 0x82,
+};
+
+const BITMAP_OPAQUE lock_unlock_xpm[1] = {{ png, sizeof( png ), "lock_unlock_xpm" }};
+
+//EOF
diff --git a/bitmaps_png/cpp_26/locked.cpp b/bitmaps_png/cpp_26/locked.cpp
index 8546211182..941260a11d 100644
--- a/bitmaps_png/cpp_26/locked.cpp
+++ b/bitmaps_png/cpp_26/locked.cpp
@@ -8,33 +8,35 @@
 static const unsigned char png[] = {
  0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
  0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0x1a, 0x08, 0x06, 0x00, 0x00, 0x00, 0xa9, 0x4a, 0x4c,
- 0xce, 0x00, 0x00, 0x01, 0x95, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0x63, 0x60, 0x18, 0x6e, 0x80,
- 0x91, 0x18, 0x45, 0xcd, 0xcd, 0xcd, 0x8a, 0x7f, 0xff, 0xfe, 0xcd, 0x01, 0x32, 0x5d, 0x80, 0x58,
- 0x1e, 0x2a, 0xfc, 0x10, 0x88, 0xf7, 0x30, 0x33, 0x33, 0x4f, 0xa9, 0xad, 0xad, 0xbd, 0x4f, 0xb1,
- 0x45, 0x8d, 0x8d, 0x8d, 0xfe, 0xff, 0xff, 0xff, 0x5f, 0x0e, 0x64, 0x72, 0xe2, 0x50, 0xf2, 0x0d,
- 0x88, 0x23, 0x1b, 0x1a, 0x1a, 0x36, 0xe1, 0x33, 0x87, 0x89, 0x80, 0x4f, 0x54, 0x81, 0x96, 0xac,
- 0x80, 0x5a, 0xb2, 0x84, 0x89, 0x89, 0xc9, 0x8c, 0x83, 0x83, 0x43, 0x00, 0x84, 0x41, 0x6c, 0xa0,
- 0xd8, 0x52, 0x20, 0xe6, 0x02, 0xe2, 0x95, 0x40, 0x8b, 0x54, 0xf0, 0x99, 0xc5, 0x82, 0x4f, 0x12,
- 0x18, 0x5c, 0xe5, 0x40, 0x8a, 0x03, 0x88, 0xe7, 0x01, 0x0d, 0x4a, 0x46, 0x93, 0x3e, 0x0d, 0xc4,
- 0x31, 0x40, 0xf1, 0x9f, 0x40, 0x3a, 0x09, 0x88, 0x41, 0x6a, 0x53, 0xc9, 0xf2, 0x11, 0x10, 0xb8,
- 0x43, 0xe9, 0x5e, 0x3c, 0x6a, 0x7a, 0xd1, 0xd4, 0x92, 0x65, 0x91, 0x24, 0x94, 0xbe, 0x81, 0x47,
- 0x0d, 0x4c, 0x4e, 0x8a, 0x12, 0x8b, 0x98, 0x41, 0x04, 0x30, 0x78, 0xfe, 0xe1, 0x52, 0x80, 0x24,
- 0xc7, 0x4c, 0x89, 0x45, 0x54, 0x03, 0xc3, 0xcf, 0x22, 0x8c, 0x0c, 0x1b, 0x11, 0x11, 0xd1, 0x01,
- 0xa4, 0x0a, 0x81, 0xf9, 0x87, 0x0d, 0x98, 0xbc, 0x19, 0xfe, 0xfd, 0xfb, 0x47, 0x12, 0x06, 0xea,
- 0xf9, 0x05, 0xa4, 0x7b, 0x4f, 0x9e, 0x3c, 0x59, 0x85, 0xd7, 0x47, 0x40, 0x0b, 0x0a, 0x81, 0x8a,
- 0xd9, 0xfe, 0xfc, 0xf9, 0x03, 0xd2, 0x44, 0x10, 0x83, 0xd4, 0x21, 0x63, 0x90, 0x5e, 0x20, 0x2e,
- 0x22, 0x98, 0x61, 0x41, 0x0a, 0x09, 0xb8, 0x98, 0xa0, 0xaf, 0x80, 0x80, 0x9d, 0x18, 0x8b, 0x70,
- 0x1a, 0x6a, 0x60, 0x60, 0xc0, 0x90, 0x96, 0x96, 0x06, 0xf2, 0x35, 0xc3, 0xb4, 0x69, 0xd3, 0x18,
- 0x4e, 0x9f, 0x3e, 0x8d, 0x22, 0x0f, 0x12, 0x27, 0x3a, 0x31, 0xa0, 0x05, 0x03, 0x0a, 0x4e, 0x4d,
- 0x4d, 0x65, 0x10, 0x12, 0x12, 0x62, 0x10, 0x16, 0x16, 0x66, 0xc8, 0xc8, 0xc8, 0x80, 0x07, 0x1d,
- 0x88, 0xc6, 0x67, 0x09, 0x41, 0x1f, 0x61, 0x09, 0x12, 0x0c, 0x47, 0x91, 0x9d, 0xbc, 0xf1, 0x45,
- 0xf6, 0xe4, 0xc9, 0x93, 0x19, 0x7e, 0xff, 0xfe, 0x0d, 0xc6, 0x13, 0x27, 0x4e, 0x24, 0x29, 0x79,
- 0xb3, 0x60, 0x73, 0x25, 0x2e, 0x1f, 0x01, 0x93, 0x2c, 0xc3, 0xf5, 0xeb, 0xd7, 0x21, 0x45, 0xf7,
- 0xe9, 0xd3, 0x94, 0x59, 0x84, 0x2f, 0xe8, 0x08, 0xc5, 0x03, 0x45, 0x16, 0xa1, 0x47, 0xf4, 0x91,
- 0x23, 0x47, 0xa8, 0x63, 0x11, 0x7a, 0xd0, 0xa1, 0x83, 0x8d, 0x1b, 0x37, 0x52, 0xa7, 0xac, 0x03,
- 0x15, 0x21, 0x30, 0x5f, 0x51, 0x00, 0x7e, 0x12, 0x63, 0x51, 0x2f, 0x30, 0xa8, 0x7e, 0x51, 0x60,
- 0xc9, 0x2f, 0xa0, 0xfe, 0x9e, 0x01, 0x6b, 0xd7, 0x01, 0x00, 0x25, 0x5a, 0xbf, 0x01, 0x77, 0x49,
- 0xeb, 0x47, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
+ 0xce, 0x00, 0x00, 0x01, 0xb6, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0xdd, 0x96, 0x3f, 0x6f, 0xd3,
+ 0x60, 0x10, 0x87, 0x9f, 0x73, 0x2b, 0x43, 0x99, 0xaa, 0x64, 0x2a, 0x4b, 0x85, 0x44, 0xf7, 0x4c,
+ 0xfd, 0x04, 0x48, 0x1d, 0x59, 0x83, 0xc4, 0x44, 0xe2, 0x34, 0x03, 0x4b, 0x59, 0x2a, 0x55, 0x2a,
+ 0x0a, 0xb0, 0x30, 0x90, 0x21, 0x0a, 0xca, 0x40, 0x2a, 0x26, 0x10, 0x30, 0x86, 0x99, 0x31, 0x8b,
+ 0xe5, 0x0f, 0x10, 0xb6, 0xaa, 0x5f, 0x02, 0xa9, 0xb1, 0xef, 0xbd, 0x0e, 0xfd, 0x03, 0x71, 0x6b,
+ 0x3b, 0x8d, 0x23, 0x21, 0xf5, 0xa4, 0x9b, 0xee, 0xfc, 0x3e, 0xf7, 0xbb, 0xbb, 0xf7, 0x95, 0xe1,
+ 0xae, 0x99, 0xcc, 0x93, 0xf4, 0xae, 0xd9, 0x7c, 0x64, 0x26, 0x2f, 0x45, 0x78, 0x62, 0xb0, 0x79,
+ 0xf1, 0xe1, 0x89, 0x19, 0xbf, 0x44, 0xec, 0xe3, 0xe1, 0xd1, 0xd1, 0x71, 0x69, 0xd0, 0x9b, 0x66,
+ 0xf3, 0xa9, 0x20, 0xdf, 0x80, 0xb5, 0x8c, 0x94, 0x3f, 0x22, 0x3c, 0x3b, 0x1c, 0x0e, 0x7f, 0xe6,
+ 0x9d, 0xe3, 0xe5, 0x2a, 0xd9, 0xdd, 0xdd, 0x12, 0xe4, 0xfb, 0x39, 0x44, 0xbe, 0x20, 0x6c, 0xfb,
+ 0x9e, 0xac, 0xfb, 0x9e, 0xac, 0x23, 0x6c, 0x0b, 0x7c, 0x05, 0x1e, 0x98, 0xf1, 0xa3, 0xd3, 0x68,
+ 0x3c, 0xce, 0x3b, 0x6b, 0x35, 0x57, 0x8e, 0xba, 0x7d, 0xe0, 0x3e, 0xc2, 0xe7, 0xd7, 0xc3, 0x4f,
+ 0x8d, 0x54, 0x34, 0x02, 0x9e, 0xbf, 0x0d, 0x82, 0x53, 0x8c, 0x17, 0x9e, 0xc8, 0x3e, 0x10, 0x2c,
+ 0xa4, 0xc8, 0x60, 0x07, 0xc0, 0x25, 0x5e, 0x37, 0x2b, 0xe7, 0x6f, 0xcc, 0xdb, 0x59, 0xb8, 0x75,
+ 0xc0, 0x06, 0x00, 0x9b, 0x1b, 0xbf, 0x33, 0x33, 0xae, 0x62, 0xf6, 0xb0, 0x0c, 0x68, 0x05, 0xa0,
+ 0xd3, 0xe9, 0xb8, 0xac, 0x84, 0x7f, 0x62, 0x2b, 0x65, 0x40, 0x4b, 0xb3, 0xbb, 0x07, 0xba, 0x76,
+ 0x61, 0xeb, 0xf5, 0xfa, 0x7b, 0x60, 0xcf, 0xcc, 0x7c, 0x55, 0xc5, 0x39, 0x77, 0x2b, 0x57, 0xd5,
+ 0xa9, 0x73, 0xae, 0x1b, 0x86, 0xe1, 0x41, 0xae, 0x22, 0x33, 0xdb, 0x53, 0x55, 0x3f, 0x49, 0x12,
+ 0x54, 0xb5, 0xd0, 0x93, 0x24, 0x99, 0x71, 0x55, 0xf5, 0x55, 0xf5, 0x55, 0xe1, 0x85, 0x55, 0x55,
+ 0xbf, 0xa0, 0xe2, 0x42, 0x55, 0xc0, 0xbd, 0x79, 0x40, 0x99, 0x87, 0xd6, 0x6a, 0x35, 0x5a, 0xad,
+ 0x16, 0x66, 0xc6, 0x60, 0x30, 0x20, 0x8a, 0xa2, 0x99, 0xb8, 0x99, 0xcd, 0xbf, 0x0c, 0xa9, 0x36,
+ 0xcc, 0x78, 0x10, 0x04, 0x54, 0x2a, 0x15, 0xaa, 0xd5, 0x2a, 0xed, 0x76, 0xfb, 0xaa, 0x75, 0xaa,
+ 0x9a, 0x0b, 0x29, 0x54, 0x74, 0x43, 0x4b, 0xae, 0x15, 0xb5, 0xf0, 0x7a, 0xe7, 0x0d, 0xbb, 0xdf,
+ 0xef, 0x13, 0xc7, 0x31, 0x71, 0x1c, 0xd3, 0xeb, 0xf5, 0x6e, 0xb5, 0xde, 0xab, 0x37, 0x55, 0x99,
+ 0xa5, 0x28, 0x0c, 0x43, 0x26, 0x93, 0xc9, 0xf9, 0xd3, 0x1d, 0x45, 0xe5, 0x40, 0x79, 0xad, 0x2b,
+ 0x9a, 0x43, 0x29, 0x50, 0x7a, 0xd0, 0xe3, 0xf1, 0x78, 0x39, 0xa0, 0x74, 0xeb, 0xd2, 0x36, 0x1a,
+ 0x8d, 0x96, 0xf3, 0xd6, 0xa9, 0xea, 0xf4, 0x52, 0x55, 0x09, 0x3b, 0x9d, 0x07, 0xd4, 0x35, 0xb3,
+ 0x69, 0x09, 0xc8, 0xd4, 0xcc, 0x3e, 0xfc, 0xb7, 0xff, 0xba, 0x33, 0x76, 0xe5, 0xc3, 0xdb, 0x78,
+ 0x51, 0xf1, 0x43, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
 };
 
 const BITMAP_OPAQUE locked_xpm[1] = {{ png, sizeof( png ), "locked_xpm" }};
diff --git a/bitmaps_png/cpp_26/polar_coord.cpp b/bitmaps_png/cpp_26/polar_coord.cpp
index 2a5cc699cc..fe3881bc69 100644
--- a/bitmaps_png/cpp_26/polar_coord.cpp
+++ b/bitmaps_png/cpp_26/polar_coord.cpp
@@ -8,78 +8,63 @@
 static const unsigned char png[] = {
  0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
  0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0x1a, 0x08, 0x06, 0x00, 0x00, 0x00, 0xa9, 0x4a, 0x4c,
- 0xce, 0x00, 0x00, 0x00, 0x04, 0x73, 0x42, 0x49, 0x54, 0x08, 0x08, 0x08, 0x08, 0x7c, 0x08, 0x64,
- 0x88, 0x00, 0x00, 0x00, 0x09, 0x70, 0x48, 0x59, 0x73, 0x00, 0x00, 0x0e, 0xc4, 0x00, 0x00, 0x0e,
- 0xc4, 0x01, 0x95, 0x2b, 0x0e, 0x1b, 0x00, 0x00, 0x00, 0x19, 0x74, 0x45, 0x58, 0x74, 0x53, 0x6f,
- 0x66, 0x74, 0x77, 0x61, 0x72, 0x65, 0x00, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x6e, 0x6b, 0x73, 0x63,
- 0x61, 0x70, 0x65, 0x2e, 0x6f, 0x72, 0x67, 0x9b, 0xee, 0x3c, 0x1a, 0x00, 0x00, 0x04, 0x1b, 0x49,
- 0x44, 0x41, 0x54, 0x48, 0x89, 0xc5, 0x96, 0x5b, 0x68, 0x14, 0x67, 0x14, 0xc7, 0x7f, 0xe7, 0xdb,
- 0x4b, 0xdc, 0x74, 0x93, 0xd8, 0x16, 0x34, 0x2f, 0x35, 0xa2, 0x42, 0x2f, 0xd2, 0x52, 0x89, 0x90,
- 0x64, 0x36, 0x9b, 0x58, 0x72, 0x35, 0x48, 0x11, 0x4a, 0x88, 0x88, 0x29, 0x8d, 0xb6, 0x2f, 0x7d,
- 0x69, 0xa1, 0xb4, 0x08, 0x16, 0x09, 0x28, 0x36, 0x55, 0xa9, 0x17, 0x7a, 0x81, 0x0a, 0x96, 0xd2,
- 0xd6, 0xd6, 0x46, 0x1f, 0xea, 0x43, 0xd5, 0x50, 0xca, 0x62, 0x1a, 0xa4, 0xb1, 0xd0, 0x42, 0x35,
- 0x86, 0x98, 0x09, 0x49, 0x73, 0xdb, 0x0d, 0xda, 0x44, 0x43, 0x2e, 0x6b, 0x76, 0xe6, 0xeb, 0xc3,
- 0xcc, 0xea, 0xba, 0x6e, 0xd2, 0x2d, 0x2d, 0xf4, 0x0f, 0xcb, 0xec, 0xcc, 0x77, 0xce, 0xf9, 0xcd,
- 0x39, 0xdf, 0xf9, 0xce, 0x2e, 0xfc, 0x0f, 0xda, 0xf2, 0x5f, 0x05, 0x4a, 0xc0, 0x2e, 0x0b, 0xc6,
- 0xe6, 0x61, 0xe0, 0x3a, 0xbc, 0x06, 0x48, 0x72, 0x6d, 0x39, 0x30, 0xe4, 0x5e, 0xff, 0x95, 0x34,
- 0x48, 0x02, 0x62, 0x1a, 0xb4, 0x06, 0x7d, 0x1b, 0xfe, 0xac, 0x84, 0x17, 0xbc, 0xee, 0xfa, 0x56,
- 0xc0, 0x07, 0x34, 0x00, 0xa7, 0x92, 0x4e, 0x2f, 0x96, 0x94, 0xac, 0x4c, 0xf8, 0xfd, 0x5f, 0x6a,
- 0xb8, 0x0b, 0xbc, 0x8d, 0xd6, 0x7b, 0x10, 0x29, 0xd1, 0x22, 0xfb, 0x2e, 0x5c, 0xba, 0xf4, 0xf9,
- 0x62, 0xb0, 0xb8, 0x48, 0x4e, 0xae, 0xd6, 0xf7, 0xd8, 0x83, 0xb0, 0x56, 0xb9, 0x37, 0x8d, 0xee,
- 0xf5, 0xa5, 0x54, 0x87, 0xbb, 0x81, 0x40, 0x40, 0x43, 0x35, 0x50, 0x03, 0x74, 0x23, 0xd2, 0x00,
- 0x78, 0xb0, 0xed, 0x82, 0x45, 0x18, 0x52, 0x55, 0x5a, 0xba, 0xeb, 0xc4, 0x9a, 0x35, 0xfe, 0x19,
- 0x98, 0x9d, 0x82, 0x9b, 0xc7, 0xe0, 0xcc, 0x32, 0xb8, 0xed, 0x05, 0xd6, 0x00, 0xcf, 0xbb, 0x86,
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- 0x80, 0xb5, 0xd9, 0x30, 0x6a, 0xf1, 0x78, 0x76, 0x0a, 0xd8, 0x16, 0x1c, 0xbd, 0xd8, 0xd9, 0xd9,
- 0xfd, 0xb7, 0x19, 0x65, 0x01, 0x69, 0x1b, 0x8e, 0x46, 0xbf, 0xbd, 0x07, 0xa9, 0xa8, 0x38, 0xa2,
- 0x95, 0xfa, 0x02, 0xdb, 0x36, 0x81, 0x52, 0x05, 0x9f, 0x25, 0x3b, 0x34, 0x15, 0x94, 0x95, 0x6a,
- 0x0d, 0x63, 0x5b, 0x1a, 0x64, 0x0c, 0xb0, 0xea, 0x2a, 0x2b, 0xc3, 0x68, 0xbd, 0x53, 0xe0, 0xe0,
- 0xf9, 0xae, 0xae, 0x3d, 0x36, 0xf4, 0x00, 0x85, 0xb7, 0x63, 0xb1, 0x55, 0xff, 0x38, 0xa3, 0x5a,
- 0xc3, 0xd8, 0x26, 0x22, 0x1f, 0x5e, 0x33, 0xcd, 0xf7, 0x87, 0xa3, 0xd1, 0x33, 0xc0, 0x28, 0xee,
- 0x9e, 0x78, 0x6c, 0xfb, 0x2d, 0xed, 0x1c, 0xcc, 0xf6, 0x4d, 0x9b, 0x36, 0x05, 0x11, 0xb1, 0xd0,
- 0xda, 0xab, 0x2c, 0xcb, 0x0f, 0x4e, 0xd7, 0x65, 0x05, 0xaa, 0x0a, 0x85, 0x9a, 0x94, 0xc8, 0xc7,
- 0xbd, 0xa6, 0x79, 0x68, 0xc4, 0x81, 0x8c, 0x70, 0x7f, 0xe3, 0x45, 0x6b, 0xbd, 0x4e, 0x29, 0xe5,
- 0x4b, 0x40, 0x4f, 0xc0, 0xb2, 0x14, 0x30, 0x2d, 0x22, 0x53, 0x73, 0x5e, 0xef, 0x50, 0xd6, 0x19,
- 0x55, 0x85, 0x42, 0x4d, 0x3e, 0x91, 0x4f, 0x7a, 0x4d, 0xf3, 0xd0, 0xa0, 0xd3, 0x5d, 0xc3, 0x40,
- 0xe2, 0xde, 0x7a, 0x55, 0xd5, 0x63, 0x22, 0xf2, 0xb8, 0xb6, 0xed, 0xdf, 0xcf, 0x77, 0x76, 0x06,
- 0x83, 0x85, 0x85, 0x79, 0xc0, 0xa4, 0x0d, 0xd1, 0x48, 0x24, 0x32, 0x9f, 0x15, 0xa8, 0x2e, 0x14,
- 0xda, 0xeb, 0x13, 0x39, 0x71, 0xdd, 0x34, 0x0f, 0x0f, 0x8e, 0x8f, 0xb7, 0xa7, 0x43, 0x00, 0x02,
- 0xb3, 0xb3, 0xcb, 0xb4, 0x53, 0x1d, 0x1b, 0xe0, 0x4e, 0x34, 0xba, 0x05, 0x28, 0x42, 0xeb, 0x9f,
- 0x92, 0x36, 0x8a, 0x25, 0x54, 0x5b, 0x5e, 0xbe, 0x5b, 0x44, 0xde, 0x9d, 0x8f, 0xc7, 0xfb, 0xd6,
- 0x15, 0x15, 0x95, 0x86, 0x36, 0x6c, 0x98, 0x4d, 0x87, 0x00, 0x6c, 0xbc, 0x7c, 0x79, 0x5c, 0x60,
- 0x52, 0xa0, 0xb0, 0xb8, 0xb8, 0xd8, 0x27, 0xf0, 0x0e, 0x22, 0x37, 0xfc, 0x5a, 0xb7, 0xa6, 0x83,
- 0x1e, 0xca, 0xa8, 0x2e, 0x1c, 0x7e, 0xd3, 0x23, 0xb2, 0xcf, 0x1c, 0x1a, 0x3a, 0x18, 0xb9, 0x72,
- 0x65, 0xbb, 0x47, 0xa9, 0xa3, 0xf9, 0xc1, 0xe0, 0xe9, 0x5a, 0xc3, 0x58, 0x91, 0x0e, 0x6a, 0x05,
- 0xdb, 0xd6, 0xfa, 0x2b, 0x2d, 0x52, 0xb0, 0x22, 0x37, 0xf7, 0x96, 0x12, 0xf1, 0x2b, 0xdb, 0xde,
- 0x7a, 0xae, 0xab, 0x6b, 0x3a, 0xdd, 0x36, 0x1f, 0xe7, 0xc0, 0x26, 0x33, 0x79, 0x7d, 0x73, 0x79,
- 0xf9, 0xc2, 0x93, 0xab, 0x57, 0xb7, 0x01, 0x4f, 0xe3, 0x8e, 0xa8, 0x86, 0x50, 0x68, 0x63, 0x7d,
- 0x79, 0xf9, 0x8f, 0xad, 0x8b, 0x54, 0xa2, 0x15, 0x54, 0xe3, 0xfa, 0xf5, 0xfe, 0xa5, 0xaa, 0x54,
- 0x00, 0xf4, 0x01, 0xd4, 0x19, 0x46, 0x4b, 0x7d, 0x38, 0xbc, 0xf0, 0xd4, 0xda, 0xb5, 0x87, 0x71,
- 0x86, 0xac, 0x2f, 0xd5, 0xb0, 0xbe, 0xa2, 0x62, 0x77, 0x7d, 0x38, 0xfc, 0xca, 0x52, 0xc1, 0x32,
- 0xe9, 0x81, 0xd2, 0xd5, 0x95, 0x95, 0xbd, 0xac, 0x94, 0xfa, 0x74, 0x24, 0x1a, 0xfd, 0xa8, 0xd7,
- 0x34, 0x4f, 0xba, 0x59, 0x2e, 0xa4, 0x3a, 0xe4, 0x2d, 0x2c, 0x1c, 0x13, 0x68, 0xc9, 0x10, 0xab,
- 0x01, 0x68, 0xc6, 0xa9, 0xce, 0x43, 0x4a, 0x4e, 0x84, 0x47, 0x81, 0x9f, 0xeb, 0xc3, 0xe1, 0x27,
- 0x66, 0xe6, 0xe6, 0xba, 0xe3, 0xf1, 0xf8, 0x77, 0xcb, 0xf3, 0xf2, 0xc6, 0x94, 0x52, 0x99, 0x07,
- 0xa4, 0x48, 0x6b, 0xb0, 0xb0, 0xf0, 0xb9, 0xb4, 0xdf, 0xa5, 0x95, 0xc0, 0xaf, 0x38, 0x93, 0xfe,
- 0x22, 0xd0, 0x0e, 0x44, 0x70, 0xcf, 0x5a, 0x12, 0x54, 0x00, 0x0c, 0xfa, 0xbc, 0x5e, 0xcb, 0x7d,
- 0x96, 0x11, 0x90, 0xf2, 0x76, 0xd6, 0xdd, 0x44, 0x62, 0x2a, 0xc3, 0x52, 0x3e, 0x0f, 0x8e, 0xb3,
- 0x19, 0xe0, 0x0d, 0xe0, 0x7b, 0x49, 0x33, 0x4a, 0x4e, 0x8a, 0x25, 0x41, 0x29, 0x0a, 0xa6, 0xf8,
- 0x3c, 0x02, 0xfc, 0xe0, 0x7e, 0x1f, 0x05, 0x2e, 0x00, 0x67, 0x81, 0xdf, 0xb2, 0x8c, 0x95, 0xb5,
- 0x9a, 0x70, 0xfe, 0x02, 0x84, 0xc9, 0x30, 0xa4, 0xff, 0x02, 0x9a, 0x98, 0x88, 0x7f, 0x66, 0xc7,
- 0x32, 0x7b, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
+ 0xce, 0x00, 0x00, 0x03, 0x73, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0xc5, 0x96, 0x5b, 0x6c, 0x4c,
+ 0x51, 0x14, 0x86, 0xd7, 0xe8, 0xb4, 0x75, 0xab, 0x6b, 0x32, 0x97, 0xea, 0xb4, 0x43, 0xb5, 0xaa,
+ 0x45, 0x48, 0xca, 0x5c, 0xce, 0xa5, 0x87, 0x32, 0x9d, 0x19, 0x4c, 0xe2, 0x61, 0x52, 0x71, 0x17,
+ 0x95, 0x20, 0x22, 0xe2, 0x92, 0x94, 0x87, 0x46, 0xf0, 0xe0, 0x41, 0xa2, 0xf1, 0xc4, 0x83, 0x37,
+ 0x22, 0xe2, 0xf2, 0xe0, 0xf2, 0xd4, 0x44, 0x88, 0x08, 0x89, 0xc6, 0x83, 0x84, 0xaa, 0x56, 0x5b,
+ 0xea, 0xae, 0x9d, 0x22, 0x8a, 0x28, 0xea, 0x5f, 0x63, 0x9f, 0xe6, 0x18, 0xa7, 0x63, 0x5a, 0xc4,
+ 0x4e, 0xfe, 0x9c, 0xb3, 0x66, 0xef, 0xbd, 0xbe, 0xbd, 0xd6, 0xde, 0xeb, 0xec, 0x21, 0xfa, 0x0f,
+ 0x6d, 0xd1, 0xdf, 0x72, 0xf4, 0x85, 0x68, 0xdd, 0x57, 0xa2, 0x67, 0x9f, 0x88, 0x5a, 0x1a, 0x88,
+ 0xd6, 0xe3, 0x27, 0x8b, 0xde, 0x37, 0x06, 0x7a, 0x24, 0x9e, 0x7f, 0xd4, 0x7a, 0xe1, 0x14, 0xa0,
+ 0x97, 0x78, 0xf6, 0xb2, 0xde, 0x12, 0xc5, 0xca, 0x88, 0xe6, 0xea, 0xfd, 0x6b, 0xa0, 0x67, 0xd0,
+ 0x32, 0xe3, 0xa4, 0x88, 0xc7, 0x63, 0x0f, 0x2b, 0x4a, 0x5d, 0x48, 0x51, 0x2e, 0x41, 0xc5, 0x21,
+ 0x59, 0x3e, 0x81, 0x67, 0x73, 0x50, 0x55, 0x57, 0x27, 0x03, 0x75, 0x5b, 0x2c, 0x6f, 0x0c, 0xa0,
+ 0xce, 0x3c, 0xa2, 0x2a, 0xbd, 0xff, 0x92, 0x00, 0x9d, 0x35, 0x4e, 0x0a, 0x6a, 0x9a, 0x1b, 0x8e,
+ 0x7b, 0xa1, 0xcf, 0xd0, 0x7b, 0xa8, 0x0b, 0x6a, 0x0d, 0xca, 0xf2, 0x96, 0x7e, 0x38, 0x96, 0x79,
+ 0x5e, 0x6f, 0x55, 0x6d, 0x7e, 0xfe, 0x87, 0xf7, 0x44, 0xdd, 0x5d, 0x44, 0xaf, 0xf7, 0x12, 0x1d,
+ 0x9d, 0x42, 0x14, 0xe5, 0xce, 0x49, 0xd0, 0x53, 0x01, 0xe2, 0x67, 0xae, 0x09, 0x88, 0x75, 0x52,
+ 0xd3, 0xb4, 0xa1, 0xfc, 0x7b, 0x34, 0x1a, 0x4d, 0x33, 0x83, 0xcc, 0xf7, 0xf9, 0x56, 0x55, 0x48,
+ 0x52, 0xc7, 0x44, 0x9b, 0x6d, 0xc7, 0x0c, 0x24, 0x64, 0x22, 0x86, 0x16, 0x11, 0x55, 0xac, 0x22,
+ 0x1a, 0xcf, 0x03, 0x76, 0x09, 0x88, 0xae, 0x2d, 0x26, 0xa0, 0x0f, 0x81, 0x40, 0x60, 0x44, 0xb2,
+ 0xbd, 0x59, 0xe0, 0xf7, 0xaf, 0x64, 0xc8, 0x04, 0xbb, 0x7d, 0x2b, 0x4c, 0x1b, 0x94, 0x26, 0x0e,
+ 0x41, 0xdf, 0x41, 0x88, 0xd0, 0x0f, 0xe2, 0x13, 0x71, 0x18, 0x22, 0x26, 0xa0, 0xb6, 0x01, 0x40,
+ 0xec, 0x02, 0x62, 0xda, 0xd2, 0x05, 0x88, 0xfa, 0xd9, 0xa3, 0xc6, 0xfe, 0x26, 0x96, 0x7b, 0x3c,
+ 0x2b, 0x18, 0xe2, 0x72, 0x3a, 0xb7, 0xc1, 0x74, 0x26, 0x83, 0x70, 0xcb, 0x80, 0xda, 0x13, 0x7f,
+ 0x5c, 0x2c, 0xcb, 0xb9, 0x80, 0xc4, 0x82, 0x8a, 0x72, 0x3d, 0x05, 0x48, 0x36, 0x43, 0xc2, 0xb2,
+ 0x5c, 0x18, 0xd2, 0xb4, 0xcd, 0x61, 0x49, 0xaa, 0x0a, 0xf8, 0xfd, 0xb6, 0xc4, 0x39, 0x99, 0xd0,
+ 0xe3, 0x81, 0xd4, 0x0b, 0x36, 0x7e, 0x59, 0x1c, 0xe2, 0x70, 0x6c, 0x87, 0x99, 0x53, 0x52, 0x52,
+ 0x92, 0x81, 0x63, 0x7f, 0x1c, 0xea, 0xe8, 0x3b, 0x40, 0xaa, 0xca, 0x27, 0x54, 0x33, 0xce, 0x1b,
+ 0x2a, 0x0a, 0x76, 0xa0, 0x90, 0x1d, 0x30, 0x5d, 0x1c, 0x09, 0x1c, 0xd7, 0x40, 0x3d, 0xa8, 0xb5,
+ 0x4e, 0x38, 0x3f, 0xc5, 0xfb, 0xca, 0x30, 0xd4, 0xe1, 0x45, 0xe3, 0xdc, 0x61, 0xa9, 0x82, 0x90,
+ 0x8e, 0xa5, 0x06, 0x48, 0x6e, 0x1c, 0x12, 0x0a, 0x65, 0x22, 0xbd, 0xf7, 0xd9, 0x31, 0x43, 0x78,
+ 0x1c, 0xde, 0x2f, 0xc4, 0xa3, 0x92, 0xe5, 0x9b, 0xc6, 0xf9, 0xc3, 0xa1, 0xb6, 0x54, 0x21, 0x39,
+ 0x0e, 0xc7, 0x4e, 0x98, 0x6e, 0x7d, 0xe3, 0xe1, 0x7c, 0x49, 0xf0, 0x47, 0x51, 0x7f, 0x83, 0xee,
+ 0x20, 0x65, 0x37, 0x60, 0xb7, 0x88, 0x14, 0x5e, 0x31, 0xfa, 0xe0, 0x1a, 0x69, 0x4d, 0x06, 0x29,
+ 0x97, 0xa4, 0x4a, 0x38, 0x8c, 0xb9, 0x9d, 0x4e, 0xae, 0x3b, 0xd4, 0x22, 0x59, 0xf5, 0x3e, 0xac,
+ 0xfa, 0x98, 0x58, 0x7d, 0x37, 0xf4, 0x82, 0x05, 0xd0, 0x47, 0x11, 0xe1, 0x39, 0xa3, 0x9f, 0x91,
+ 0x50, 0xcb, 0x60, 0x20, 0x22, 0x4d, 0x67, 0xc4, 0xea, 0xeb, 0x17, 0xca, 0xf2, 0x24, 0x44, 0x14,
+ 0x00, 0x88, 0x0f, 0xc5, 0x37, 0xec, 0xd1, 0x06, 0xe3, 0xd8, 0x2c, 0xe8, 0xa1, 0x19, 0x04, 0xa9,
+ 0xaa, 0x01, 0xe4, 0x5d, 0x9e, 0xd3, 0xb9, 0x1b, 0xe6, 0xe4, 0x44, 0x48, 0x3c, 0x75, 0x8a, 0x72,
+ 0x5a, 0x80, 0x9a, 0xe3, 0x1f, 0x62, 0x59, 0xae, 0x13, 0xf6, 0xbd, 0x88, 0x24, 0x65, 0xfd, 0x16,
+ 0x14, 0x90, 0xe5, 0x6a, 0x40, 0x3e, 0x6b, 0xb3, 0x67, 0xd7, 0x97, 0x7b, 0xbd, 0xe7, 0xa5, 0x59,
+ 0xb3, 0xb2, 0xcd, 0x16, 0x13, 0x2a, 0x2b, 0xdb, 0x88, 0x28, 0x3e, 0x09, 0xe7, 0xed, 0xd0, 0x57,
+ 0xa4, 0x2f, 0x86, 0xe7, 0xfa, 0xc4, 0xb1, 0xa3, 0xa0, 0xe6, 0x9f, 0x22, 0x51, 0x94, 0xad, 0x7c,
+ 0x5c, 0x0b, 0x5c, 0xae, 0xfd, 0x30, 0x0b, 0x71, 0x10, 0xe6, 0xc1, 0xbe, 0x66, 0x56, 0x84, 0xfc,
+ 0x3d, 0x43, 0xdf, 0x21, 0xc0, 0x6e, 0x87, 0x55, 0xb5, 0x01, 0xef, 0x57, 0xf1, 0xbe, 0xdc, 0x6c,
+ 0x51, 0x0c, 0x6a, 0x32, 0x44, 0xb2, 0x09, 0x2b, 0xea, 0x99, 0xe2, 0x76, 0x1f, 0x80, 0x39, 0x55,
+ 0x7c, 0xa2, 0x08, 0xd5, 0x5e, 0x8a, 0x08, 0x2f, 0xef, 0x21, 0x1a, 0x32, 0xd8, 0x8b, 0x71, 0x34,
+ 0xf4, 0x20, 0x1e, 0x89, 0xdf, 0xbf, 0x16, 0x39, 0xef, 0x29, 0xca, 0xcf, 0x3f, 0x08, 0xb3, 0x58,
+ 0x87, 0xf4, 0xed, 0x87, 0xaa, 0x56, 0xa3, 0x7f, 0xcd, 0x60, 0x41, 0xfc, 0xd5, 0x6e, 0xac, 0xc0,
+ 0x7d, 0xc2, 0x91, 0x4c, 0x2b, 0x28, 0xa8, 0x35, 0x83, 0xc4, 0xef, 0x22, 0x9f, 0x6f, 0x18, 0xa7,
+ 0xc6, 0xc4, 0x47, 0x18, 0x5a, 0x29, 0xb2, 0xd3, 0x6f, 0x1b, 0xcb, 0x11, 0xf1, 0xd9, 0x57, 0x4a,
+ 0x4b, 0xaf, 0xce, 0x99, 0x3e, 0x7d, 0x1b, 0x17, 0x27, 0xd2, 0x14, 0x35, 0x13, 0x40, 0x77, 0x4d,
+ 0x2e, 0x3f, 0xbb, 0xb8, 0xcf, 0xb8, 0x1e, 0x8f, 0x70, 0x55, 0x98, 0x7d, 0xc9, 0x39, 0x75, 0x5d,
+ 0xe9, 0x56, 0x6b, 0x07, 0xd4, 0x09, 0xbd, 0x4a, 0xa6, 0x0c, 0xab, 0xf5, 0x39, 0xc6, 0x37, 0x98,
+ 0xe8, 0x69, 0xc2, 0x25, 0xda, 0x24, 0x22, 0xfd, 0xe5, 0x40, 0x8c, 0x13, 0x1a, 0x9d, 0xa2, 0x26,
+ 0x40, 0x79, 0x42, 0xc5, 0x06, 0xc0, 0x2d, 0x68, 0x1f, 0x34, 0xf3, 0x5f, 0xfc, 0x2f, 0xac, 0x84,
+ 0x0e, 0x43, 0x8a, 0xf1, 0xfa, 0xd6, 0xdb, 0x77, 0xcb, 0x1b, 0x49, 0x88, 0x18, 0x0b, 0x33, 0xe5,
+ 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
 };
 
 const BITMAP_OPAQUE polar_coord_xpm[1] = {{ png, sizeof( png ), "polar_coord_xpm" }};
diff --git a/bitmaps_png/cpp_26/unlocked.cpp b/bitmaps_png/cpp_26/unlocked.cpp
index 7b43fe4921..062928dc6b 100644
--- a/bitmaps_png/cpp_26/unlocked.cpp
+++ b/bitmaps_png/cpp_26/unlocked.cpp
@@ -8,34 +8,25 @@
 static const unsigned char png[] = {
  0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
  0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0x1a, 0x08, 0x06, 0x00, 0x00, 0x00, 0xa9, 0x4a, 0x4c,
- 0xce, 0x00, 0x00, 0x01, 0xa5, 0x49, 0x44, 0x41, 0x54, 0x48, 0xc7, 0x63, 0x60, 0x18, 0x6e, 0x80,
- 0x91, 0x52, 0x03, 0x9a, 0x9b, 0x9b, 0x15, 0xff, 0xfe, 0xfd, 0x9b, 0x03, 0x64, 0xba, 0x00, 0xb1,
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 };
 
 const BITMAP_OPAQUE unlocked_xpm[1] = {{ png, sizeof( png ), "unlocked_xpm" }};
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new file mode 100644
index 0000000000..6545ecf9f9
--- /dev/null
+++ b/bitmaps_png/sources/lock_unlock.svg
@@ -0,0 +1,455 @@
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+     sodipodi:nodetypes="cczcc" />
+  <path
+     style="fill:none;stroke:#906e6e;stroke-width:2;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     d="M 15,12 V 8 C 15,8 15.5,3 10,3 4.5,3 5,8 5,8 v 4"
+     id="path3944-5"
+     inkscape:connector-curvature="0"
+     sodipodi:nodetypes="cczcc" />
+  <rect
+     style="fill:#292b2b;fill-opacity:1;stroke:none"
+     id="rect3169"
+     width="17.999996"
+     height="13"
+     x="1"
+     y="12"
+     rx="1.5"
+     ry="1.5" />
+  <path
+     sodipodi:type="arc"
+     style="fill:#ececec;fill-opacity:1;stroke:none"
+     id="path3971"
+     sodipodi:cx="13"
+     sodipodi:cy="16"
+     sodipodi:rx="2"
+     sodipodi:ry="2"
+     d="m 15,16 a 2,2 0 1 1 -4,0 2,2 0 1 1 4,0 z"
+     transform="translate(-3,1)" />
+  <path
+     style="fill:none;stroke:#ececec;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+     d="m 10,17 0,4"
+     id="path3973"
+     inkscape:connector-curvature="0"
+     sodipodi:nodetypes="cc" />
+</svg>
diff --git a/bitmaps_png/sources/locked.svg b/bitmaps_png/sources/locked.svg
index db9101fdd7..7b7fe32dcf 100644
--- a/bitmaps_png/sources/locked.svg
+++ b/bitmaps_png/sources/locked.svg
@@ -12,7 +12,7 @@
    width="26"
    version="1.0"
    id="svg2"
-   inkscape:version="0.48.4 r9939"
+   inkscape:version="0.92.0 r15299"
    sodipodi:docname="locked.svg">
   <metadata
      id="metadata188">
@@ -34,15 +34,15 @@
      guidetolerance="10"
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
-     inkscape:window-width="1366"
-     inkscape:window-height="744"
+     inkscape:window-width="1920"
+     inkscape:window-height="1033"
      id="namedview186"
      showgrid="true"
      inkscape:zoom="30.731949"
-     inkscape:cx="11.296694"
+     inkscape:cx="5.4721366"
      inkscape:cy="9.6647768"
-     inkscape:window-x="0"
-     inkscape:window-y="24"
+     inkscape:window-x="-4"
+     inkscape:window-y="-4"
      inkscape:window-maximized="1"
      inkscape:current-layer="svg2">
     <inkscape:grid
@@ -454,7 +454,7 @@
      rx="1.5"
      ry="1.5" />
   <path
-     style="fill:none;stroke:#808080;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+     style="fill:none;stroke:#826465;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
      d="M 18,12 18,8 C 18,8 18.5,3 13,3 7.5,3 8,8 8,8 l 0,4"
      id="path3944"
      inkscape:connector-curvature="0"
diff --git a/bitmaps_png/sources/unlocked.svg b/bitmaps_png/sources/unlocked.svg
index 764c0518ea..1d7ead4366 100644
--- a/bitmaps_png/sources/unlocked.svg
+++ b/bitmaps_png/sources/unlocked.svg
@@ -12,8 +12,8 @@
    width="26"
    version="1.0"
    id="svg2"
-   inkscape:version="0.48.4 r9939"
-   sodipodi:docname="locked.svg">
+   inkscape:version="0.92.0 r15299"
+   sodipodi:docname="unlocked.svg">
   <metadata
      id="metadata188">
     <rdf:RDF>
@@ -22,7 +22,7 @@
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
+        <dc:title />
       </cc:Work>
     </rdf:RDF>
   </metadata>
@@ -35,15 +35,15 @@
      guidetolerance="10"
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
-     inkscape:window-width="1366"
-     inkscape:window-height="744"
+     inkscape:window-width="1920"
+     inkscape:window-height="1033"
      id="namedview186"
      showgrid="true"
      inkscape:zoom="15.365974"
-     inkscape:cx="16.18766"
+     inkscape:cx="-7.1105702"
      inkscape:cy="11.395488"
-     inkscape:window-x="0"
-     inkscape:window-y="24"
+     inkscape:window-x="-4"
+     inkscape:window-y="-4"
      inkscape:window-maximized="1"
      inkscape:current-layer="svg2">
     <inkscape:grid
@@ -56,18 +56,6 @@
   </sodipodi:namedview>
   <defs
      id="defs4">
-    <linearGradient
-       inkscape:collect="always"
-       id="linearGradient3975">
-      <stop
-         style="stop-color:#333333;stop-opacity:1;"
-         offset="0"
-         id="stop3977" />
-      <stop
-         style="stop-color:#585858;stop-opacity:1"
-         offset="1"
-         id="stop3979" />
-    </linearGradient>
     <linearGradient
        id="an"
        y2="13.849"
@@ -426,25 +414,15 @@
          stdDeviation="0.42546784"
          id="feGaussianBlur106" />
     </filter>
-    <linearGradient
-       inkscape:collect="always"
-       xlink:href="#linearGradient3975"
-       id="linearGradient3981"
-       x1="10"
-       y1="21"
-       x2="5"
-       y2="13"
-       gradientUnits="userSpaceOnUse"
-       gradientTransform="translate(-3,0)" />
   </defs>
   <path
-     style="fill:none;stroke:#808080;stroke-width:2;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+     style="fill:none;stroke:#607a63;stroke-width:2;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
      d="m 25,12 0,-4 c 0,0 0.5,-5 -5,-5 -5.5,0 -5,5 -5,5 l 0,4"
      id="path3944"
      inkscape:connector-curvature="0"
      sodipodi:nodetypes="cczcc" />
   <rect
-     style="fill:url(#linearGradient3981);fill-opacity:1;stroke:none"
+     style="fill:#333333;fill-opacity:1;stroke:none"
      id="rect3169"
      width="17.999996"
      height="13"
diff --git a/include/bitmaps.h b/include/bitmaps.h
index c709fc0525..f7e11688c5 100644
--- a/include/bitmaps.h
+++ b/include/bitmaps.h
@@ -287,6 +287,7 @@ EXTERN_BITMAP( load_module_board_xpm )
 EXTERN_BITMAP( load_module_lib_xpm )
 EXTERN_BITMAP( local_ratsnest_xpm )
 EXTERN_BITMAP( locked_xpm )
+EXTERN_BITMAP( lock_unlock_xpm )
 EXTERN_BITMAP( measurement_xpm )
 EXTERN_BITMAP( minus_xpm )
 EXTERN_BITMAP( mirror_h_xpm )
diff --git a/pcbnew/tools/pcb_editor_control.cpp b/pcbnew/tools/pcb_editor_control.cpp
index ec76e6a92e..bf30a9e1bb 100644
--- a/pcbnew/tools/pcb_editor_control.cpp
+++ b/pcbnew/tools/pcb_editor_control.cpp
@@ -119,15 +119,15 @@ TOOL_ACTION PCB_ACTIONS::crossProbeSchToPcb( "pcbnew.EditorControl.crossProbSchT
 
 TOOL_ACTION PCB_ACTIONS::toggleLock( "pcbnew.EditorControl.toggleLock",
         AS_GLOBAL, TOOL_ACTION::LegacyHotKey( HK_LOCK_UNLOCK_FOOTPRINT ),
-        "Toggle Lock", "" );
+        "Toggle Lock", "", lock_unlock_xpm );
 
 TOOL_ACTION PCB_ACTIONS::lock( "pcbnew.EditorControl.lock",
         AS_GLOBAL, 0,
-        _( "Lock" ), "" );
+        _( "Lock" ), "", locked_xpm );
 
 TOOL_ACTION PCB_ACTIONS::unlock( "pcbnew.EditorControl.unlock",
         AS_GLOBAL, 0,
-        _( "Unlock" ), "" );
+        _( "Unlock" ), "", unlocked_xpm );
 
 TOOL_ACTION PCB_ACTIONS::appendBoard( "pcbnew.EditorControl.appendBoard",
         AS_GLOBAL, 0,