diff --git a/apps/block_scout_web/assets/css/_images-preload.scss b/apps/block_scout_web/assets/css/_images-preload.scss
index ee25dbd966..8356a8f90e 100644
--- a/apps/block_scout_web/assets/css/_images-preload.scss
+++ b/apps/block_scout_web/assets/css/_images-preload.scss
@@ -2,6 +2,7 @@ body:after {
 	position:absolute; width:0; height:0; overflow:hidden; z-index:-1;
 	content:
 		url(/images/network-selector-icons/callisto-mainnet.png)
+		url(/images/network-selector-icons/ethereum-mainnet.png)
 		url(/images/network-selector-icons/ethereum-classic.png)
 		url(/images/network-selector-icons/goerli-testnet.png)
 		url(/images/network-selector-icons/kovan-testnet.png)
diff --git a/apps/block_scout_web/assets/css/components/_network-selector.scss b/apps/block_scout_web/assets/css/components/_network-selector.scss
index 65e5437641..7f2a4c020d 100644
--- a/apps/block_scout_web/assets/css/components/_network-selector.scss
+++ b/apps/block_scout_web/assets/css/components/_network-selector.scss
@@ -247,6 +247,9 @@ $network-selector-item-icon-dimensions: 30px !default;
   &-callisto-mainnet {
     background-image: url(/images/network-selector-icons/callisto-mainnet.png)
   }
+  &-ethereum-mainnet {
+    background-image: url(/images/network-selector-icons/ethereum-mainnet.png)
+  }
   &-ethereum-classic {
     background-image: url(/images/network-selector-icons/ethereum-classic.png)
   }
diff --git a/apps/block_scout_web/assets/css/theme/_dai_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_dai_variables-non-critical.scss
index 69231f5098..d9f670f980 100644
--- a/apps/block_scout_web/assets/css/theme/_dai_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_dai_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #17314f;
+$secondary: #15bba6;
+$tertiary: #93d7ff;
+$additional-font: #fff;
+
 $btn-line-color: $secondary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_ether1_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_ether1_variables-non-critical.scss
index c7689bfb97..f7bf90f4fd 100644
--- a/apps/block_scout_web/assets/css/theme/_ether1_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_ether1_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #840032;
+$secondary: #343434;
+$tertiary: #7f7f7f;
+$additional-font: #ff95db;
+
 $btn-line-color: #4b021e; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_ethereum_classic_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_ethereum_classic_variables-non-critical.scss
index 3d488a6f1e..bc716596bf 100644
--- a/apps/block_scout_web/assets/css/theme/_ethereum_classic_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_ethereum_classic_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #1c1c3d;
+$secondary: #4ad7a7;
+$tertiary: #5959d8;
+$additional-font: #bdbdff;
+
 $btn-line-color: $tertiary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_ethereum_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_ethereum_variables-non-critical.scss
index 69231f5098..160c0cb684 100644
--- a/apps/block_scout_web/assets/css/theme/_ethereum_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_ethereum_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #153550;
+$secondary: #49a2ee;
+$tertiary: #4ad7a7;
+$additional-font: #89cae6;
+
 $btn-line-color: $secondary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_goerli_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_goerli_variables-non-critical.scss
index 6c80828f14..70cfaddd73 100644
--- a/apps/block_scout_web/assets/css/theme/_goerli_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_goerli_variables-non-critical.scss
@@ -1 +1,8 @@
+// general
+$primary: #2b2b2b;
+$secondary: #eac247;
+$tertiary: #929292;
+$additional-font: #ffffff;
+$sub-accent-color: #a46f30;
+
 $btn-line-color: $sub-accent-color; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_kovan_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_kovan_variables-non-critical.scss
index db0e486e0c..ab4568e14f 100644
--- a/apps/block_scout_web/assets/css/theme/_kovan_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_kovan_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #101f25;
+$secondary: #35e3d8;
+$tertiary: #1f857f;
+$additional-font: #99fff9;
+
 $btn-line-color: $tertiary; // button border and font color && hover bg color 
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_lukso_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_lukso_variables-non-critical.scss
index 4d0836af14..8a8d7e5eaf 100644
--- a/apps/block_scout_web/assets/css/theme/_lukso_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_lukso_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #1d3154;
+$secondary: #fdcec4;
+$tertiary: #a96c55;
+$additional-font: #a1ded1;
+
 $btn-line-color: $primary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_neutral_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_neutral_variables-non-critical.scss
index 4d0836af14..3d85713af9 100644
--- a/apps/block_scout_web/assets/css/theme/_neutral_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_neutral_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #5c34a2;
+$secondary: #87e1a9;
+$tertiary: #bf9cff;
+$additional-font: #fff;
+
 $btn-line-color: $primary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_poa_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_poa_variables-non-critical.scss
index 4d0836af14..3d85713af9 100644
--- a/apps/block_scout_web/assets/css/theme/_poa_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_poa_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #5c34a2;
+$secondary: #87e1a9;
+$tertiary: #bf9cff;
+$additional-font: #fff;
+
 $btn-line-color: $primary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_rinkeby_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_rinkeby_variables-non-critical.scss
index 69231f5098..823da9f2d6 100644
--- a/apps/block_scout_web/assets/css/theme/_rinkeby_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_rinkeby_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #153550;
+$secondary: #38a9f5;
+$tertiary: #76f1ff;
+$additional-font: #89cae6;
+
 $btn-line-color: $secondary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_ropsten_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_ropsten_variables-non-critical.scss
index 69231f5098..823da9f2d6 100644
--- a/apps/block_scout_web/assets/css/theme/_ropsten_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_ropsten_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #153550;
+$secondary: #38a9f5;
+$tertiary: #76f1ff;
+$additional-font: #89cae6;
+
 $btn-line-color: $secondary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_rsk_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_rsk_variables-non-critical.scss
index 69231f5098..c874423aa6 100644
--- a/apps/block_scout_web/assets/css/theme/_rsk_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_rsk_variables-non-critical.scss
@@ -1 +1,7 @@
+// general
+$primary: #101f25;
+$secondary: #27ac8d;
+$tertiary: #e39a54;
+$additional-font: #a1ded1;
+
 $btn-line-color: $secondary; // button border and font color && hover bg color
\ No newline at end of file
diff --git a/apps/block_scout_web/assets/css/theme/_sokol_variables-non-critical.scss b/apps/block_scout_web/assets/css/theme/_sokol_variables-non-critical.scss
index 6c80828f14..64fd3c9f9c 100644
--- a/apps/block_scout_web/assets/css/theme/_sokol_variables-non-critical.scss
+++ b/apps/block_scout_web/assets/css/theme/_sokol_variables-non-critical.scss
@@ -1 +1,8 @@
+// general
+$primary: #093731;
+$secondary: #40bfb2;
+$tertiary: #25c9ff;
+$additional-font: #93e8dd;
+$sub-accent-color: #1c9f90;
+
 $btn-line-color: $sub-accent-color; // button border and font color && hover bg color
\ No newline at end of file