diff --git a/configs/featured-networks/arb-blueberry.json b/configs/featured-networks/arb-blueberry.json
index c38508ab..c7e18a60 100644
--- a/configs/featured-networks/arb-blueberry.json
+++ b/configs/featured-networks/arb-blueberry.json
@@ -9,7 +9,7 @@
 		"title": "OP Celestia Raspberry",
 		"url": "https://opcelestia-raspberry.gelatoscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Polygon Blackberry",
diff --git a/configs/featured-networks/base-goerli.json b/configs/featured-networks/base-goerli.json
index 85cd49ff..5f691f8d 100644
--- a/configs/featured-networks/base-goerli.json
+++ b/configs/featured-networks/base-goerli.json
@@ -9,7 +9,7 @@
         "title": "Optimism",
         "url": "https://optimism.blockscout.com/",
         "group": "Mainnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Base Chain",
@@ -109,19 +109,19 @@
         "title": "Optimism Goerli",
         "url": "https://optimism-goerli.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Sepolia",
         "url": "https://optimism-sepolia.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Bedrock Beta",
         "url": "https://blockscout.com/optimism/bedrock-beta",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "ZetaChain testnet",
diff --git a/configs/featured-networks/base-mainnet.json b/configs/featured-networks/base-mainnet.json
index a7ed335f..da3b2305 100644
--- a/configs/featured-networks/base-mainnet.json
+++ b/configs/featured-networks/base-mainnet.json
@@ -8,7 +8,7 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Base Chain",
@@ -108,19 +108,19 @@
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Bedrock Beta",
 		"url": "https://blockscout.com/optimism/bedrock-beta",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "ZetaChain testnet",
diff --git a/configs/featured-networks/base-sepolia.json b/configs/featured-networks/base-sepolia.json
index 09e1effd..a600f670 100644
--- a/configs/featured-networks/base-sepolia.json
+++ b/configs/featured-networks/base-sepolia.json
@@ -9,7 +9,7 @@
         "title": "Optimism",
         "url": "https://optimism.blockscout.com/",
         "group": "Mainnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Base Chain",
@@ -109,19 +109,19 @@
         "title": "Optimism Goerli",
         "url": "https://optimism-goerli.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Sepolia",
         "url": "https://optimism-sepolia.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Bedrock Beta",
         "url": "https://blockscout.com/optimism/bedrock-beta",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "ZetaChain testnet",
diff --git a/configs/featured-networks/eth-goerli.json b/configs/featured-networks/eth-goerli.json
index 5107f26f..a1f4b8f6 100644
--- a/configs/featured-networks/eth-goerli.json
+++ b/configs/featured-networks/eth-goerli.json
@@ -8,7 +8,7 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Base Chain",
@@ -108,19 +108,19 @@
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Bedrock Beta",
 		"url": "https://blockscout.com/optimism/bedrock-beta",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "ZetaChain testnet",
diff --git a/configs/featured-networks/eth-sepolia.json b/configs/featured-networks/eth-sepolia.json
index a32fe3b5..b0ad13b6 100644
--- a/configs/featured-networks/eth-sepolia.json
+++ b/configs/featured-networks/eth-sepolia.json
@@ -8,7 +8,7 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Base Chain",
@@ -108,19 +108,19 @@
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Bedrock Beta",
 		"url": "https://blockscout.com/optimism/bedrock-beta",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "ZetaChain testnet",
diff --git a/configs/featured-networks/eth.json b/configs/featured-networks/eth.json
index f812ebab..cae6ec4b 100644
--- a/configs/featured-networks/eth.json
+++ b/configs/featured-networks/eth.json
@@ -9,7 +9,7 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Base Chain",
@@ -108,19 +108,19 @@
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Bedrock Beta",
 		"url": "https://blockscout.com/optimism/bedrock-beta",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "ZetaChain testnet",
diff --git a/configs/featured-networks/holesky.json b/configs/featured-networks/holesky.json
index 1a1c92e0..3dbfa8ca 100644
--- a/configs/featured-networks/holesky.json
+++ b/configs/featured-networks/holesky.json
@@ -9,7 +9,7 @@
         "title": "Optimism",
         "url": "https://optimism.blockscout.com/",
         "group": "Mainnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Base Chain",
@@ -108,19 +108,19 @@
         "title": "Optimism Goerli",
         "url": "https://optimism-goerli.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Sepolia",
         "url": "https://optimism-sepolia.blockscout.com/",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "Optimism Bedrock Beta",
         "url": "https://blockscout.com/optimism/bedrock-beta",
         "group": "Testnets",
-        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+        "icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
     },
     {
         "title": "ZetaChain testnet",
diff --git a/configs/featured-networks/opcelestia-raspberry.json b/configs/featured-networks/opcelestia-raspberry.json
index 238f3f89..c3fa29e8 100644
--- a/configs/featured-networks/opcelestia-raspberry.json
+++ b/configs/featured-networks/opcelestia-raspberry.json
@@ -2,7 +2,7 @@
 		"title": "OP Celestia Raspberry",
 		"url": "https://opcelestia-raspberry.gelatoscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg",
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg",
 		"isActive": true
 	},
 	{
diff --git a/configs/featured-networks/optimism-goerli.json b/configs/featured-networks/optimism-goerli.json
index 9de61310..e77f3b5a 100644
--- a/configs/featured-networks/optimism-goerli.json
+++ b/configs/featured-networks/optimism-goerli.json
@@ -2,19 +2,19 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg",
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg",
 		"isActive": true
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	}
 ]
diff --git a/configs/featured-networks/optimism-mainnet.json b/configs/featured-networks/optimism-mainnet.json
index de4d5588..4f98ea60 100644
--- a/configs/featured-networks/optimism-mainnet.json
+++ b/configs/featured-networks/optimism-mainnet.json
@@ -2,19 +2,19 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg",
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg",
 		"isActive": true
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	}
-]
+]
\ No newline at end of file
diff --git a/configs/featured-networks/optimism-sepolia.json b/configs/featured-networks/optimism-sepolia.json
index 6dd446d1..8db15c2f 100644
--- a/configs/featured-networks/optimism-sepolia.json
+++ b/configs/featured-networks/optimism-sepolia.json
@@ -2,19 +2,19 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Sepolia",
 		"url": "https://optimism-sepolia.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg",
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg",
 		"isActive": true
 	},
 	{
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	}
 ]
diff --git a/configs/featured-networks/polygon-blackberry.json b/configs/featured-networks/polygon-blackberry.json
index 819ec9b8..16b26969 100644
--- a/configs/featured-networks/polygon-blackberry.json
+++ b/configs/featured-networks/polygon-blackberry.json
@@ -9,7 +9,7 @@
 		"title": "OP Celestia Raspberry",
 		"url": "https://opcelestia-raspberry.gelatoscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Arbitrum Blueberry",
diff --git a/configs/featured-networks/polygon-mainnet.json b/configs/featured-networks/polygon-mainnet.json
index 0429e29d..b526c2f1 100644
--- a/configs/featured-networks/polygon-mainnet.json
+++ b/configs/featured-networks/polygon-mainnet.json
@@ -15,7 +15,7 @@
 		"title": "Optimism",
 		"url": "https://optimism.blockscout.com/",
 		"group": "Mainnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Base Chain",
@@ -83,13 +83,13 @@
 		"title": "Optimism Goerli",
 		"url": "https://optimism-goerli.blockscout.com/",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "Optimism Bedrock Beta",
 		"url": "https://blockscout.com/optimism/bedrock-beta",
 		"group": "Testnets",
-		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism.svg"
+		"icon": "https://raw.githubusercontent.com/blockscout/frontend-configs/main/configs/network-icons/optimism-light.svg"
 	},
 	{
 		"title": "ZetaChain testnet",