diff --git a/Boolean_set_operations_2/demo/Boolean_set_operations_2/icons/symm_diff.xpm b/Boolean_set_operations_2/demo/Boolean_set_operations_2/icons/symm_diff.xpm
index 374b3969f62..08960729295 100644
--- a/Boolean_set_operations_2/demo/Boolean_set_operations_2/icons/symm_diff.xpm
+++ b/Boolean_set_operations_2/demo/Boolean_set_operations_2/icons/symm_diff.xpm
@@ -1,7 +1,7 @@
 /* XPM */
 static char *symm_diff_xpm[] = {
 /* width height ncolors chars_per_pixel */
-"32 32 28 1",
+"32 32 27 1",
 /* colors */
 "  c #000000",
 ". c #9898E7",
@@ -21,47 +21,46 @@ static char *symm_diff_xpm[] = {
 ": c #AFAFD6",
 "> c #AAAADB",
 ", c #9E9EE3",
-"< c #808080",
-"1 c #7070F4",
-"2 c None",
-"3 c #4C4CFB",
-"4 c #E79898",
-"5 c #EA9191",
-"6 c #ED8A8A",
-"7 c #F95A5A",
-"8 c #0000FF",
-"9 c None",
+"< c #7070F4",
+"1 c None",
+"2 c #4C4CFB",
+"3 c #E79898",
+"4 c #EA9191",
+"5 c #ED8A8A",
+"6 c #F95A5A",
+"7 c #0000FF",
+"8 c None",
 /* pixels */
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"888888;1>22222222222222257=76222",
-"2>8822&O8,222222222222+77#2#77@2",
-"2288222>832222<22222227$22222$72",
-"22882222882222 2222226=4222225=6",
-"2288222288222 2 222227=+22222@=7",
-"2288222:8322% 2 %2222==2222222==",
-"2288.2:O8X22 %22 2222==2222222==",
-"2288888O.222 222 2222==2222222==",
-"22882222222 22222 222$=+222222=7",
-"2288222222% 22222 %22-=4222224=6",
-"2288222222 %22222% 22+=$22222$72",
-"228822222%         %224=7#2#7722",
-"2:88>222222222222222222*o==$5222",
-"88888822222222222222222224==2222",
-"222222222222222222222222224==722",
-"222222222222222222222222222447=2",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222",
-"22222222222222222222222222222222"
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"777777;<>11111111111111146=65111",
+"1>7711&O7,111111111111+66#1#66@1",
+"1177111>72111%%11111116$11111$61",
+"1177111177111  1111115=3111114=5",
+"117711117711%  %111116=+11111@=6",
+"1177111:7211    %1111==1111111==",
+"1177.1:O7X1  %%  1111==1111111==",
+"1177777O.1%  11  %111==1111111==",
+"1177111111  1111  111$=+111111=6",
+"117711111%  1111  %11-=3111113=5",
+"11771111%  %1111%  %1+=$11111$61",
+"11771111%          %113=6#1#6611",
+"1:77>11%            %11*o==$4111",
+"77777711111111111111111113==1111",
+"111111111111111111111111113==611",
+"111111111111111111111111111336=1",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111",
+"11111111111111111111111111111111"
 };