Change default Total waterfall bar color (#14162)

* change default Total color to blue

* change gray in color picker to text-dark

* whoops I meant text-dark

frontend/src/metabase/lib/colors.js

@@ -120,7 +120,7 @@ function syncDeprecatedColorFamilies() {
   normal.orange = colors["accent5"];
   normal.teal = colors["accent6"];
   normal.indigo = colors["accent7"];
-  normal.gray = colors["text-medium"];
+  normal.gray = colors["text-dark"];
   normal.grey1 = colors["text-light"];
   normal.grey2 = colors["text-medium"];
   normal.grey3 = colors["text-dark"];

frontend/src/metabase/visualizations/visualizations/WaterfallChart.jsx

@@ -41,7 +41,7 @@ export default class WaterfallChart extends LineAreaBarChart {
       section: t`Display`,
       props: { title: t`Total color` },
       widget: "color",
-      default: color("accent7"),
+      default: color("text-dark"),
       getHidden: (series, vizSettings) =>
         vizSettings["waterfall.show_total"] !== true,
       readDependencies: ["waterfall.show_total"],