diff --git a/packages/pluggableWidgets/bubble-chart-web/e2e/BubbleChart.spec.js-snapshots/bubbleChartXYLabels-chromium-linux.png b/packages/pluggableWidgets/bubble-chart-web/e2e/BubbleChart.spec.js-snapshots/bubbleChartXYLabels-chromium-linux.png
index ed3e2ea78e..cf336556a0 100644
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diff --git a/packages/pluggableWidgets/bubble-chart-web/e2e/BubbleChart.spec.js-snapshots/bubbleChartYLabel-chromium-linux.png b/packages/pluggableWidgets/bubble-chart-web/e2e/BubbleChart.spec.js-snapshots/bubbleChartYLabel-chromium-linux.png
index ed3e2ea78e..cf336556a0 100644
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diff --git a/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartXLabel-chromium-linux.png b/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartXLabel-chromium-linux.png
index d3c9d3d886..60470b657d 100644
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diff --git a/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartXYLabels-chromium-linux.png b/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartXYLabels-chromium-linux.png
index 8965e6900c..f92d57b977 100644
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diff --git a/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartYLabel-chromium-linux.png b/packages/pluggableWidgets/line-chart-web/e2e/LineChart.spec.js-snapshots/lineChartYLabel-chromium-linux.png
index 17fb7dcca1..a68734967a 100644
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diff --git a/packages/shared/charts/src/utils/__tests__/configs.spec.ts b/packages/shared/charts/src/utils/__tests__/configs.spec.ts
new file mode 100644
index 0000000000..2faba86bf1
--- /dev/null
+++ b/packages/shared/charts/src/utils/__tests__/configs.spec.ts
@@ -0,0 +1,69 @@
+import {
+    CustomLayoutProps,
+    defaultConfigs,
+    getCustomLayoutOptions,
+    getModelerConfigOptions,
+    getModelerLayoutOptions,
+    getModelerSeriesOptions
+} from "../configs";
+
+const props: CustomLayoutProps = {
+    showLegend: true,
+    xAxisLabel: { text: "X-Axis" },
+    yAxisLabel: { text: "Y-Axis" },
+    gridLinesMode: "both"
+};
+
+describe("getCustomLayoutOptions", () => {
+    it("passes axis titles through as { text } without extra nesting", () => {
+        const layout = getCustomLayoutOptions(props);
+
+        expect(layout.showlegend).toBe(true);
+        expect(layout.xaxis?.title).toEqual({ text: "X-Axis" });
+        expect(layout.yaxis?.title).toEqual({ text: "Y-Axis" });
+    });
+
+    it("leaves the axis title undefined when no label is given", () => {
+        const layout = getCustomLayoutOptions({ ...props, xAxisLabel: undefined, yAxisLabel: undefined });
+
+        expect(layout.xaxis?.title).toBeUndefined();
+        expect(layout.yaxis?.title).toBeUndefined();
+    });
+
+    it.each([
+        ["both", true, true],
+        ["vertical", true, false],
+        ["horizontal", false, true],
+        ["none", false, false]
+    ] as const)("maps gridLinesMode %s to showgrid x=%s y=%s", (gridLinesMode, x, y) => {
+        const layout = getCustomLayoutOptions({ ...props, gridLinesMode });
+
+        expect(layout.xaxis?.showgrid).toBe(x);
+        expect(layout.yaxis?.showgrid).toBe(y);
+    });
+});
+
+describe("modeler options merging", () => {
+    it("keeps axis titles intact and layers defaults, custom layout and overrides", () => {
+        const layout = getModelerLayoutOptions(getCustomLayoutOptions(props), {
+            xaxis: { gridcolor: "#d7d7d7" },
+            margin: { t: 10 }
+        });
+
+        expect(layout.xaxis).toEqual({ title: { text: "X-Axis" }, showgrid: true, gridcolor: "#d7d7d7" });
+        expect(layout.yaxis).toEqual({ title: { text: "Y-Axis" }, showgrid: true });
+        expect(layout.margin).toEqual({ ...defaultConfigs.layout.margin, t: 10 });
+        expect(layout.font).toEqual(defaultConfigs.layout.font);
+    });
+
+    it("applies defaults for config and series with custom values winning", () => {
+        expect(getModelerConfigOptions({ displayModeBar: true })).toEqual({
+            ...defaultConfigs.configuration,
+            displayModeBar: true
+        });
+        expect(getModelerSeriesOptions({ hoverinfo: "text" })).toEqual({
+            ...defaultConfigs.series,
+            hoverinfo: "text"
+        });
+    });
+});
diff --git a/packages/shared/charts/src/utils/configs.ts b/packages/shared/charts/src/utils/configs.ts
index aba3deacfe..cb8b8e7d92 100644
--- a/packages/shared/charts/src/utils/configs.ts
+++ b/packages/shared/charts/src/utils/configs.ts
@@ -69,11 +69,11 @@ export const getCustomLayoutOptions = ({
 }: CustomLayoutProps): Partial<Layout> => ({
     showlegend: showLegend,
     xaxis: {
-        title: { text: xAxisLabel } as Layout["xaxis"]["title"],
+        title: xAxisLabel,
         showgrid: gridLinesMode === "both" || gridLinesMode === "vertical"
     },
     yaxis: {
-        title: { text: yAxisLabel } as Layout["yaxis"]["title"],
+        title: yAxisLabel,
         showgrid: gridLinesMode === "both" || gridLinesMode === "horizontal"
     }
 });