diff --git a/frontend/src/app/components/incoming-transactions-graph/incoming-transactions-graph.component.ts b/frontend/src/app/components/incoming-transactions-graph/incoming-transactions-graph.component.ts
index d57ce616e..1edd5c208 100644
--- a/frontend/src/app/components/incoming-transactions-graph/incoming-transactions-graph.component.ts
+++ b/frontend/src/app/components/incoming-transactions-graph/incoming-transactions-graph.component.ts
@@ -133,7 +133,7 @@ export class IncomingTransactionsGraphComponent implements OnInit, OnChanges {
             symbol: 'none',
             lineStyle: {
               color: '#fff',
-              opacity: 0.75,
+              opacity: 1,
               width: 2,
             },
             data: [{
diff --git a/frontend/src/app/components/mempool-graph/mempool-graph.component.ts b/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
index e5be2556e..45c00aead 100644
--- a/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
+++ b/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
@@ -134,8 +134,8 @@ export class MempoolGraphComponent implements OnInit, OnChanges {
             symbol: 'none',
             lineStyle: {
               color: '#fff',
-              opacity: 0.75,
-              width: 2,
+              opacity: 1,
+              width: this.inverted ? 2 : 0,
             },
             data: [{
               yAxis: '1000000',