diff --git a/res/icons/arrow_down.png b/res/icons/arrow_down.png
index 2c4e2793..9bc3057e 100644
Binary files a/res/icons/arrow_down.png and b/res/icons/arrow_down.png differ
diff --git a/res/icons/arrow_join_left.png b/res/icons/arrow_join_left.png
deleted file mode 100644
index 2be297be..00000000
Binary files a/res/icons/arrow_join_left.png and /dev/null differ
diff --git a/res/icons/arrow_join_right.png b/res/icons/arrow_join_right.png
deleted file mode 100644
index 9f78daef..00000000
Binary files a/res/icons/arrow_join_right.png and /dev/null differ
diff --git a/res/icons/arrow_left.png b/res/icons/arrow_left.png
index 5dc69678..18f9cc10 100644
Binary files a/res/icons/arrow_left.png and b/res/icons/arrow_left.png differ
diff --git a/res/icons/arrow_right.png b/res/icons/arrow_right.png
index b1a18192..e252606d 100644
Binary files a/res/icons/arrow_right.png and b/res/icons/arrow_right.png differ
diff --git a/res/icons/arrow_up.png b/res/icons/arrow_up.png
index 1ebb1932..11e21d04 100644
Binary files a/res/icons/arrow_up.png and b/res/icons/arrow_up.png differ
diff --git a/res/icons/arrows_lefttoright.png b/res/icons/arrows_lefttoright.png
new file mode 100644
index 00000000..ec1bb474
Binary files /dev/null and b/res/icons/arrows_lefttoright.png differ
diff --git a/res/icons/arrows_righttoleft.png b/res/icons/arrows_righttoleft.png
new file mode 100644
index 00000000..96636ab7
Binary files /dev/null and b/res/icons/arrows_righttoleft.png differ
diff --git a/source/main.dfm b/source/main.dfm
index c82c78d9..1b4d9c9f 100644
--- a/source/main.dfm
+++ b/source/main.dfm
@@ -3595,40 +3595,35 @@ object MainForm: TMainForm
       item
         PngImage.Data = {
           89504E470D0A1A0A0000000D49484452000000100000001008060000001FF3FF
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-          FDF3EFF704BBD936241B507434EDA2189B84DEDF7F7F191EBF7F746186C76243
-          A20C283991C1F6EFCFBFABA2EC622A0A3C4A0CFFFEFD63B8F1FA3AC3C3378F6E
-          FDFEF55B7779D4865F780D283C9CBAFBEF9FBF36A2ECE21C0AFC8A0CFFFEFF63
-          78FAFE29C3A587977E000D38B836699B07515E48DD12FDDF4ADE9AE12FD00527
-          6F9F6478FBE18DE5BA94ED27880E83F8B561FFAD956D812EF8CBB0E3F40E860D
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-          81E12FD080AD07B632EC2D3B429A013E535DFF3B18030D0046E3963D5B180ED7
-          9D22CD00B75EFBFF8E164EC068FCCBB071FB6686536DE74933C0BED5F2BFB3AD
-          0B380C366CDCC870A1EF2A690658D61AFF777576031BB07ECD0686AB536F9166
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-          FD8701983219EE2D78449A01C40200E3CDD6E1230A89BB0000000049454E44AE
-          426082}
+          610000001874455874536F667477617265005061696E742E4E45542076332E31
+          3072B22592000001254944415478DA63FCFFFF3F03258071D400FC0648251D7B
+          F4FF3BC3C53F6F3E06BEDEEDF9872403748ACE2D9117E38CFEF1FD2FC3D52B6F
+          D6BE58EB1042B401EE2DD7E74909B3276A4AB1337CFFF58F61DFF9770C37AEBD
+          59F572837338410312A6DEEB13E5672B5411676378F1E117C3B79F7F19585919
+          190E9E7BCF70F3F29BC5AFB639C7E134A064D1E376613EB60A19215686F75F7F
+          33BCFBFC9BE10BD0807FFFFE33B0030D390C32E4E2CB85AF77BB27601850B7F2
+          65FB3F068672430576C6DF40B19F3FFF31FC003AFFFBAFBF100C34E8FBEF7F0C
+          C7CEBD65B879E1D59C37FB3D53510C6858FDF20B030313F7CF3F7F18BEFEFCC3
+          F0E5FB7F868FDF7F317CF8F69BE1D3E73F0CEFBEFF66F8FEE50FC33FA0D8BFAF
+          7F185E6D7260A47D3A181A0600008212BEE1A428F7270000000049454E44AE42
+          6082}
         Name = 'PngImage75'
         Background = clWindow
       end
       item
         PngImage.Data = {
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-          FB0FEBED39F7CD71A961A4343B0300ACFAD2E11B8572350000000049454E44AE
-          426082}
+          610000001874455874536F667477617265005061696E742E4E45542076332E31
+          3072B22592000001224944415478DA63FCFFFF3F032580711819D0B0FAE51706
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+          61F6444D2976A0F3FF31EC3BFF8EE1C6B537AB5E6E700E273A16748ACE2D9117
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         Name = 'PngImage74'
         Background = clWindow
       end
@@ -3636,15 +3631,18 @@ object MainForm: TMainForm
         PngImage.Data = {
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-          EDDDE1EE0C96E70000000049454E44AE426082}
+          647971C9653C000001454944415478DA63FCFFFF3F032580912E0664CF7ED4FE
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+          919925E5ED591FF20CC0072836000012139BE17CCC00550000000049454E44AE
+          426082}
         Name = 'PngImage79'
         Background = clWindow
       end
@@ -3652,15 +3650,18 @@ object MainForm: TMainForm
         PngImage.Data = {
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           610000001974455874536F6674776172650041646F626520496D616765526561
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-          71421A9C060000DB7FEAE1DBB736010000000049454E44AE426082}
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+          DF3F86C94DE1E295641AF0FAFF9F7FFFFEFFF8F9ABB3274E96A0211806542E7F
+          FEDF448993E1D6F39F0C379F7EED5F90AD54449201790B1EFFB7D2E061F8FDEB
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+          1808000C03C4FC0EFCFFF7F9FB9C37FB3D530969C66A00A9806203003187C0E1
+          8827483F0000000049454E44AE426082}
         Name = 'PngImage76'
         Background = clWindow
       end
@@ -3668,25 +3669,19 @@ object MainForm: TMainForm
         PngImage.Data = {
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-          AE426082}
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+          E698631AE0507F6DB39C289B8F8E1C27C39B8FBF193E003508F3B032CCDFF684
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+          E73FC39A350F18340C441890F96F76B9E08F4651CF3D8B14157963B5B5041936
+          ADBEC7C0C4C5B21899FFF6A0077E034040D862F302593581F8C7B73E33BC3DE1
+          C588CE272A290BEAAF9FCDC8CC92F2EE9C2F23363E41038801141B00002368B2
+          11A3306C600000000049454E44AE426082}
         Name = 'PngImage77'
         Background = clWindow
       end
@@ -3694,25 +3689,19 @@ object MainForm: TMainForm
         PngImage.Data = {
           89504E470D0A1A0A0000000D49484452000000100000001008060000001FF3FF
           610000001874455874536F667477617265005061696E742E4E45542076332E31
-          3072B22592000002284944415478DA63FCFFFF3F032580116680EF3457391636
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-          E85BB8890B8B33B030B13030313231B0015DC4C2CCCCC0C2C8C270FBED2D8617
-          DF9E9F9AEEBEC81CAB010EAD963B2D0CCDDDC4452006303331030D6003B299C1
-          FC5BAF81067C7D767496F7521B14038CCBF4C05E5052542AD2D3D46378FDF615
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-          673E7EFC88E1CEFD3B0B0ED79D8447A3FF0CF71D4003FCD6266D458D46E52485
-          FF01E1BE0C4C603F32337C78F781E1CCD9B3BF58D898B58F379D259C9014E3E5
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-          CC4C60438071FDF4EAD45BC467264A00000AF7DBE129230F2A0000000049454E
-          44AE426082}
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+          FF952580F17EE5CDC2377B3C12D0F9041392A8EFFEFFFF3E7F9FF3F680572A36
+          3E4103C801141B00005934EC113B30569C0000000049454E44AE426082}
         Name = 'PngImage78'
         Background = clWindow
       end