Chart smooth lines

CHANGELOG.md

@@ -62,6 +62,7 @@
 - [#3220](https://github.com/poanetwork/blockscout/pull/3220) - Allow interaction with navbar menu at block-not-found page
 
 ### Chore
+- [#3326](https://github.com/poanetwork/blockscout/pull/3326) - Chart smooth lines
 - [#3250](https://github.com/poanetwork/blockscout/pull/3250) - Eliminate occurrences of obsolete env variable ETHEREUM_JSONRPC_JSON_RPC_TRANSPORT
 - [#3240](https://github.com/poanetwork/blockscout/pull/3240), [#3251](https://github.com/poanetwork/blockscout/pull/3251) - various CSS imroving
 - [f3a720](https://github.com/poanetwork/blockscout/commit/2dd909c10a79b0bf4b7541a486be114152f3a720) - Make wobserver optional

apps/block_scout_web/assets/js/lib/history_chart.js

@@ -174,8 +174,8 @@ class MarketHistoryChart {
       fill: false,
       pointRadius: 0,
       backgroundColor: priceLineColor,
-      borderColor: priceLineColor,
-      lineTension: 0
+      borderColor: priceLineColor
+      // lineTension: 0
     }
     if (dataConfig.market === undefined || dataConfig.market.indexOf('price') === -1) {
       this.price.hidden = true
@@ -190,8 +190,8 @@ class MarketHistoryChart {
       fill: false,
       pointRadius: 0,
       backgroundColor: mcapLineColor,
-      borderColor: mcapLineColor,
-      lineTension: 0
+      borderColor: mcapLineColor
+      // lineTension: 0
     }
     if (dataConfig.market === undefined || dataConfig.market.indexOf('market_cap') === -1) {
       this.marketCap.hidden = true
@@ -206,8 +206,8 @@ class MarketHistoryChart {
       fill: false,
       pointRadius: 0,
       backgroundColor: sassVariables.dashboardLineColorTransactions,
-      borderColor: sassVariables.dashboardLineColorTransactions,
-      lineTension: 0
+      borderColor: sassVariables.dashboardLineColorTransactions
+      // lineTension: 0
     }
 
     if (dataConfig.transactions === undefined || dataConfig.transactions.indexOf('transactions_per_day') === -1) {