diff --git a/web/frontend/package-lock.json b/web/frontend/package-lock.json
index eb80726..1ca3349 100644
--- a/web/frontend/package-lock.json
+++ b/web/frontend/package-lock.json
@@ -22,6 +22,7 @@
         "@rollup/plugin-commonjs": "^24.1.0",
         "@rollup/plugin-node-resolve": "^15.0.2",
         "@rollup/plugin-terser": "^0.4.1",
+        "@timohausmann/quadtree-js": "^1.2.5",
         "rollup": "^3.21.0",
         "rollup-plugin-css-only": "^4.3.0",
         "rollup-plugin-svelte": "^7.1.4",
@@ -225,6 +226,12 @@
         }
       }
     },
+    "node_modules/@timohausmann/quadtree-js": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/@timohausmann/quadtree-js/-/quadtree-js-1.2.5.tgz",
+      "integrity": "sha512-WcH3pouYtpyLjTCRvNP0WuSV4m7mRyYhLzW44egveFryT7pJhpDsdIJASEe37iCFNA0vmEpqTYGoG0siyXEthA==",
+      "dev": true
+    },
     "node_modules/@types/estree": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.1.tgz",
diff --git a/web/frontend/package.json b/web/frontend/package.json
index b0bb5af..3e77474 100644
--- a/web/frontend/package.json
+++ b/web/frontend/package.json
@@ -10,6 +10,7 @@
     "@rollup/plugin-commonjs": "^24.1.0",
     "@rollup/plugin-node-resolve": "^15.0.2",
     "@rollup/plugin-terser": "^0.4.1",
+    "@timohausmann/quadtree-js": "^1.2.5",
     "rollup": "^3.21.0",
     "rollup-plugin-css-only": "^4.3.0",
     "rollup-plugin-svelte": "^7.1.4",
diff --git a/web/frontend/src/Status.root.svelte b/web/frontend/src/Status.root.svelte
index f1d8e05..27eb55e 100644
--- a/web/frontend/src/Status.root.svelte
+++ b/web/frontend/src/Status.root.svelte
@@ -2,6 +2,7 @@
     import { getContext } from "svelte";
     import Refresher from "./joblist/Refresher.svelte";
     import Roofline, { transformPerNodeData } from "./plots/Roofline.svelte";
+    import Rooflineuplot from "./plots/Rooflineuplot.svelte";
     import Pie, { colors } from "./plots/Pie.svelte";
     import Histogram from "./plots/Histogram.svelte";
     import {
@@ -665,4 +666,9 @@
             {/key}
         </Col>
     </Row>
+    <Row>
+        <Col>
+            <Rooflineuplot/>
+        </Col>
+    </Row>
 {/if}
diff --git a/web/frontend/src/plots/Rooflineuplot.svelte b/web/frontend/src/plots/Rooflineuplot.svelte
new file mode 100644
index 0000000..11c1a44
--- /dev/null
+++ b/web/frontend/src/plots/Rooflineuplot.svelte
@@ -0,0 +1,187 @@
+<script>
+    import uPlot from 'uplot'
+    import { formatNumber } from '../units.js'
+    import { onMount, onDestroy } from 'svelte'
+    import { Card } from 'sveltestrap'
+
+    let plotWrapper = null
+    let uplot = null
+    let timeoutId = null
+
+    function randInt(min, max) {
+        return Math.floor(Math.random() * (max - min + 1)) + min;
+    }
+
+    function filledArr(len, val) {
+        let arr = Array(len);
+
+        if (typeof val == "function") {
+            for (let i = 0; i < len; ++i)
+                arr[i] = val(i);
+        }
+        else {
+            for (let i = 0; i < len; ++i)
+                arr[i] = val;
+        }
+
+        return arr;
+    }
+
+    let points = 10000;
+    let series = 5;
+
+    console.time("prep");
+
+    let data = filledArr(series, v => [
+        filledArr(points, i => randInt(0,500)),
+        filledArr(points, i => randInt(0,500)),
+    ]);
+
+    data[0] = null;
+
+    console.timeEnd("prep");
+
+    console.log(data);
+
+    const drawPoints = (u, seriesIdx, idx0, idx1) => {
+        const size = 5 * devicePixelRatio;
+
+        uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim, moveTo, lineTo, rect, arc) => {
+            let d = u.data[seriesIdx];
+
+            u.ctx.fillStyle = series.stroke();
+
+            let deg360 = 2 * Math.PI;
+
+            console.time("points");
+
+            let p = new Path2D();
+
+            for (let i = 0; i < d[0].length; i++) {
+                let xVal = d[0][i];
+                let yVal = d[1][i];
+
+                if (xVal >= scaleX.min && xVal <= scaleX.max && yVal >= scaleY.min && yVal <= scaleY.max) {
+                    let cx = valToPosX(xVal, scaleX, xDim, xOff);
+                    let cy = valToPosY(yVal, scaleY, yDim, yOff);
+
+                    p.moveTo(cx + size/2, cy);
+                    arc(p, cx, cy, size/2, 0, deg360);
+                }
+            }
+
+            console.timeEnd("points1");
+
+            u.ctx.fill(p);
+        });
+
+        return null;
+    };
+
+    let pxRatio;
+
+    function setPxRatio() {
+        pxRatio = devicePixelRatio;
+    }
+
+    function guardedRange(u, min, max) {
+        if (max == min) {
+            if (min == null) {
+                min = 0;
+                max = 100;
+            }
+            else {
+                let delta = Math.abs(max) || 100;
+                max += delta;
+                min -= delta;
+            }
+        }
+
+        return [min, max];
+    }
+
+    setPxRatio();
+
+    window.addEventListener('dppxchange', setPxRatio);
+
+    const opts = {
+        title: "Scatter Plot",
+        mode: 2,
+        width: 1920,
+        height: 600,
+        legend: {
+            live: false,
+        },
+        hooks: {
+            drawClear: [
+                u => {
+                    u.series.forEach((s, i) => {
+                        if (i > 0)
+                            s._paths = null;
+                    });
+                },
+            ],
+        },
+        scales: {
+            x: {
+                time: false,
+            //	auto: false,
+            //	range: [0, 500],
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+            y: {
+            //	auto: false,
+            //	range: [0, 500],
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+        },
+        series: [
+            {
+                /*
+                stroke: "red",
+                fill: "rgba(255,0,0,0.1)",
+                paths: (u, seriesIdx, idx0, idx1) => {
+                    uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim) => {
+                        let d = u.data[seriesIdx];
+
+                        console.log(d);
+                    });
+
+                    return null;
+                },
+                */
+            },
+            {
+                stroke: "red",
+                fill: "rgba(255,0,0,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "green",
+                fill: "rgba(0,255,0,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "blue",
+                fill: "rgba(0,0,255,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "magenta",
+                fill: "rgba(0,0,255,0.1)",
+                paths: drawPoints,
+            },
+        ],
+    };
+
+    let u = new uPlot(opts, data, document.body);
+
+</script>
+
+{#if data != null}
+    <div bind:this={plotWrapper}/>
+{:else}
+    <Card class="mx-4" body color="warning">Cannot render roofline: No data!</Card>
+{/if}
\ No newline at end of file
diff --git a/web/frontend/src/plots/Scatteruplot.svelte b/web/frontend/src/plots/Scatteruplot.svelte
new file mode 100644
index 0000000..0fac0b7
--- /dev/null
+++ b/web/frontend/src/plots/Scatteruplot.svelte
@@ -0,0 +1,627 @@
+<script>
+    import Quadtree from '@timohausmann/quadtree-js' // https://github.com/timohausmann/quadtree-js
+    import uPlot from 'uplot'
+    import { formatNumber } from '../units.js'
+    import { onMount, onDestroy } from 'svelte'
+    import { Card } from 'sveltestrap'
+
+    let plotWrapper = null
+    let uplot = null
+    let timeoutId = null
+
+    function randInt(min, max) {
+        return Math.floor(Math.random() * (max - min + 1)) + min;
+    }
+
+    function filledArr(len, val) {
+        let arr = Array(len);
+
+        if (typeof val == "function") {
+            for (let i = 0; i < len; ++i)
+                arr[i] = val(i);
+        }
+        else {
+            for (let i = 0; i < len; ++i)
+                arr[i] = val;
+        }
+
+        return arr;
+    }
+
+    let points = 10000;
+    let series = 5;
+
+    console.time("prep");
+
+    let data = filledArr(series, v => [
+        filledArr(points, i => randInt(0,500)),
+        filledArr(points, i => randInt(0,500)),
+    ]);
+
+    data[0] = null;
+
+    console.timeEnd("prep");
+
+    console.log(data);
+
+    const drawPoints = (u, seriesIdx, idx0, idx1) => {
+        const size = 5 * devicePixelRatio;
+
+        uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim, moveTo, lineTo, rect, arc) => {
+            let d = u.data[seriesIdx];
+
+            u.ctx.fillStyle = series.stroke();
+
+            let deg360 = 2 * Math.PI;
+
+            console.time("points");
+
+        //	let cir = new Path2D();
+        //	cir.moveTo(0, 0);
+        //	arc(cir, 0, 0, 3, 0, deg360);
+
+            // Create transformation matrix that moves 200 points to the right
+        //	let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+        //	m.a = 1;   m.b = 0;
+        //	m.c = 0;   m.d = 1;
+        //	m.e = 200; m.f = 0;
+
+
+            let p = new Path2D();
+
+            for (let i = 0; i < d[0].length; i++) {
+                let xVal = d[0][i];
+                let yVal = d[1][i];
+
+                if (xVal >= scaleX.min && xVal <= scaleX.max && yVal >= scaleY.min && yVal <= scaleY.max) {
+                    let cx = valToPosX(xVal, scaleX, xDim, xOff);
+                    let cy = valToPosY(yVal, scaleY, yDim, yOff);
+
+                    p.moveTo(cx + size/2, cy);
+                //	arc(p, cx, cy, 3, 0, deg360);
+                    arc(p, cx, cy, size/2, 0, deg360);
+
+                //	m.e = cx;
+                //	m.f = cy;
+                //	p.addPath(cir, m);
+
+                //	qt.add({x: cx - 1.5, y: cy - 1.5, w: 3, h: 3, sidx: seriesIdx, didx: i});
+                }
+            }
+
+            console.timeEnd("points");
+
+            u.ctx.fill(p);
+        });
+
+        return null;
+    };
+
+    const drawPoints2 = (u, seriesIdx, idx0, idx1) => {
+        uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim, moveTo, lineTo, rect, arc) => {
+            let d = u.data[seriesIdx];
+
+            u.ctx.fillStyle = series.fill();
+
+            let deg360 = 2 * Math.PI;
+
+            console.time("points");
+
+        //	let cir = new Path2D();
+        //	cir.moveTo(0, 0);
+        //	arc(cir, 0, 0, 3, 0, deg360);
+
+            // Create transformation matrix that moves 200 points to the right
+        //	let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+        //	m.a = 1;   m.b = 0;
+        //	m.c = 0;   m.d = 1;
+        //	m.e = 200; m.f = 0;
+
+
+            let p = new Path2D();
+
+            let strokeWidth = 1;
+
+            for (let i = 0; i < d[0].length; i++) {
+                let cx = valToPosX(d[0][i], scaleX, xDim, xOff);
+                let cy = valToPosY(d[1][i], scaleY, yDim, yOff);
+
+                let size = d[2][i] * devicePixelRatio;
+
+                p.moveTo(cx + size, cy);
+                arc(p, cx, cy, size, 0, deg360);
+                qt.add({
+                    x: cx - size - strokeWidth/2 - u.bbox.left,
+                    y: cy - size - strokeWidth/2 - u.bbox.top,
+                    w: size * 2 + strokeWidth,
+                    h: size * 2 + strokeWidth,
+                    sidx: seriesIdx,
+                    didx: i
+                });
+            }
+
+            console.timeEnd("points");
+
+            u.ctx.fill(p);
+
+            u.ctx.lineWidth = strokeWidth;
+            u.ctx.strokeStyle = series.stroke();
+            u.ctx.stroke(p);
+        });
+
+        return null;
+    };
+
+    // shape?
+    const makeDrawPoints3 = (opts) => {
+        let {/*size,*/ disp, each = () => {}} = opts;
+
+        return (u, seriesIdx, idx0, idx1) => {
+            uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim, moveTo, lineTo, rect, arc) => {
+                let d = u.data[seriesIdx];
+
+                let strokeWidth = 1;
+
+                u.ctx.save();
+
+                u.ctx.rect(u.bbox.left, u.bbox.top, u.bbox.width, u.bbox.height);
+                u.ctx.clip();
+
+                u.ctx.fillStyle = series.fill();
+                u.ctx.strokeStyle = series.stroke();
+                u.ctx.lineWidth = strokeWidth;
+
+                let deg360 = 2 * Math.PI;
+
+                console.time("points");
+
+            //	let cir = new Path2D();
+            //	cir.moveTo(0, 0);
+            //	arc(cir, 0, 0, 3, 0, deg360);
+
+                // Create transformation matrix that moves 200 points to the right
+            //	let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+            //	m.a = 1;   m.b = 0;
+            //	m.c = 0;   m.d = 1;
+            //	m.e = 200; m.f = 0;
+
+                // compute bubble dims
+                let sizes = disp.size.values(u, seriesIdx, idx0, idx1);
+
+                // todo: this depends on direction & orientation
+                // todo: calc once per redraw, not per path
+                let filtLft = u.posToVal(-maxSize / 2, scaleX.key);
+                let filtRgt = u.posToVal(u.bbox.width / devicePixelRatio + maxSize / 2, scaleX.key);
+                let filtBtm = u.posToVal(u.bbox.height / devicePixelRatio + maxSize / 2, scaleY.key);
+                let filtTop = u.posToVal(-maxSize / 2, scaleY.key);
+
+                for (let i = 0; i < d[0].length; i++) {
+                    let xVal = d[0][i];
+                    let yVal = d[1][i];
+                    let size = sizes[i] * devicePixelRatio;
+
+                    if (xVal >= filtLft && xVal <= filtRgt && yVal >= filtBtm && yVal <= filtTop) {
+                        let cx = valToPosX(xVal, scaleX, xDim, xOff);
+                        let cy = valToPosY(yVal, scaleY, yDim, yOff);
+
+                        u.ctx.moveTo(cx + size/2, cy);
+                        u.ctx.beginPath();
+                        u.ctx.arc(cx, cy, size/2, 0, deg360);
+                        u.ctx.fill();
+                        u.ctx.stroke();
+
+                        each(u, seriesIdx, i,
+                            cx - size/2 - strokeWidth/2,
+                            cy - size/2 - strokeWidth/2,
+                            size + strokeWidth,
+                            size + strokeWidth
+                        );
+                    }
+                }
+
+                console.timeEnd("points");
+
+                u.ctx.restore();
+            });
+
+            return null;
+        };
+    };
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/isPointInPath
+    let qt;
+
+    let pxRatio;
+
+    function setPxRatio() {
+        pxRatio = devicePixelRatio;
+    }
+
+    function guardedRange(u, min, max) {
+        if (max == min) {
+            if (min == null) {
+                min = 0;
+                max = 100;
+            }
+            else {
+                let delta = Math.abs(max) || 100;
+                max += delta;
+                min -= delta;
+            }
+        }
+
+        return [min, max];
+    }
+
+    setPxRatio();
+
+    window.addEventListener('dppxchange', setPxRatio);
+
+    const opts = {
+        title: "Scatter Plot",
+        mode: 2,
+        width: 1920,
+        height: 600,
+        legend: {
+            live: false,
+        },
+        hooks: {
+            drawClear: [
+                u => {
+                //	qt = qt || new Quadtree(0, 0, u.bbox.width, u.bbox.height);
+
+                //	qt.clear();
+
+                    // force-clear the path cache to cause drawBars() to rebuild new quadtree
+                    u.series.forEach((s, i) => {
+                        if (i > 0)
+                            s._paths = null;
+                    });
+                },
+            ],
+        },
+        scales: {
+            x: {
+                time: false,
+            //	auto: false,
+            //	range: [0, 500],
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+            y: {
+            //	auto: false,
+            //	range: [0, 500],
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+        },
+        series: [
+            {
+                /*
+                stroke: "red",
+                fill: "rgba(255,0,0,0.1)",
+                paths: (u, seriesIdx, idx0, idx1) => {
+                    uPlot.orient(u, seriesIdx, (series, dataX, dataY, scaleX, scaleY, valToPosX, valToPosY, xOff, yOff, xDim, yDim) => {
+                        let d = u.data[seriesIdx];
+
+                        console.log(d);
+                    });
+
+                    return null;
+                },
+                */
+            },
+            {
+                stroke: "red",
+                fill: "rgba(255,0,0,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "green",
+                fill: "rgba(0,255,0,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "blue",
+                fill: "rgba(0,0,255,0.1)",
+                paths: drawPoints,
+            },
+            {
+                stroke: "magenta",
+                fill: "rgba(0,0,255,0.1)",
+                paths: drawPoints,
+            },
+        ],
+    };
+
+    let u = new uPlot(opts, data, document.body);
+
+
+
+    points = 50;
+
+    // size range in pixels (diameter)
+    let minSize = 6;
+    let maxSize = 60;
+
+    let maxArea = Math.PI * (maxSize / 2) ** 2;
+    let minArea = Math.PI * (minSize / 2) ** 2;
+
+    // quadratic scaling (px area)
+    function getSize(value, minValue, maxValue) {
+        let pct = value / maxValue;
+        // clamp to min area
+        //let area = Math.max(maxArea * pct, minArea);
+        let area = maxArea * pct;
+        return Math.sqrt(area / Math.PI) * 2;
+    }
+
+    function getSizeMinMax(u) {
+        let minValue = Infinity;
+        let maxValue = -Infinity;
+
+        for (let i = 1; i < u.series.length; i++) {
+            let sizeData = u.data[i][2];
+
+            for (let j = 0; j < sizeData.length; j++) {
+                minValue = Math.min(minValue, sizeData[j]);
+                maxValue = Math.max(maxValue, sizeData[j]);
+            }
+        }
+
+        return [minValue, maxValue];
+    }
+
+    let drawPoints3 = makeDrawPoints3({
+        disp: {
+            size: {
+                unit: 3, // raw CSS pixels
+            //	discr: true,
+                values: (u, seriesIdx, idx0, idx1) => {
+                    // TODO: only run once per setData() call
+                    let [minValue, maxValue] = getSizeMinMax(u);
+                    return u.data[seriesIdx][2].map(v => getSize(v, minValue, maxValue));
+                },
+            },
+        },
+        each: (u, seriesIdx, dataIdx, lft, top, wid, hgt) => {
+            // we get back raw canvas coords (included axes & padding). translate to the plotting area origin
+            lft -= u.bbox.left;
+            top -= u.bbox.top;
+            qt.add({x: lft, y: top, w: wid, h: hgt, sidx: seriesIdx, didx: dataIdx});
+        },
+    });
+
+    let data2 = filledArr(series, v => [
+        filledArr(points, i => randInt(0,500)),
+        filledArr(points, i => randInt(0,500)),
+        filledArr(points, i => randInt(1,10000)),  // bubble size, population
+        filledArr(points, i => (Math.random() + 1).toString(36).substring(7)), // label / country name
+    ]);
+
+    data2[0] = null;
+    data2[1][1] = data2[1][1].map(v => v == 0 ? v : v * -1);
+
+    /*
+    const legendValue = (u, val, seriesIdx, idx) => {
+        let [x, y, size] = u.data[seriesIdx];
+        return `${x[idx]}, ${y[idx]}, ${size[idx]}`;
+    };
+    */
+
+    const legendValues = (u, seriesIdx, dataIdx) => {
+        // when data null, it's initial schema probe (also u.status == 0)
+        if (u.data == null || dataIdx == null || hRect == null || hRect.sidx != seriesIdx) {
+            return {
+                "Country":    '<NUM COUNTRIES>',
+                "Population": '<TOTAL POP>',
+                "GDP":        '<TOTAL GDP>',
+                "Income":     '<AVG INCOME>'
+            };
+        }
+
+        let [x, y, size, label] = u.data[seriesIdx];
+
+        return {
+            "Country":    label[hRect.didx],
+            "Population": size[hRect.didx],
+            "GDP":        '$' + x[hRect.didx],
+            "Income":     '$' + y[hRect.didx],
+        };
+    };
+
+    // hovered
+    let hRect;
+
+    const opts2 = {
+        title: "Bubble Plot",
+        mode: 2,
+        width: 1920,
+        height: 600,
+        legend: {
+        //	live: false,
+        },
+        cursor: {
+            dataIdx: (u, seriesIdx) => {
+                if (seriesIdx == 1) {
+                    hRect = null;
+
+                    let dist = Infinity;
+                    let cx = u.cursor.left * pxRatio;
+                    let cy = u.cursor.top * pxRatio;
+
+                    // !!! https://github.com/timohausmann/quadtree-js/blob/master/docs/simple.html
+                    // Rewrite mouseOver based on this example
+
+                    // let overlaps =  qt.retrieve({x:cx, y:cy, width:1, height:1})
+                    
+                    // for(var i=0;i<overlaps.length;i=i+1) {
+                    //     overlaps[i].check = true;
+                    // }
+
+                    // OLD!
+                    qt.get(cx, cy, 1, 1, o => {
+                        if (pointWithin(cx, cy, o.x, o.y, o.x + o.w, o.y + o.h)) {
+                            let ocx = o.x + o.w / 2;
+                            let ocy = o.y + o.h / 2;
+
+                            let dx = ocx - cx;
+                            let dy = ocy - cy;
+
+                            let d = Math.sqrt(dx ** 2 + dy ** 2);
+
+                            // test against radius for actual hover
+                            if (d <= o.w / 2) {
+                                // only hover bbox with closest distance
+                                if (d <= dist) {
+                                    dist = d;
+                                    hRect = o;
+                                }
+                            }
+                        }
+                    });
+                }
+
+                return hRect && seriesIdx == hRect.sidx ? hRect.didx : null;
+            },
+            points: {
+                size: (u, seriesIdx) => {
+                    return hRect && seriesIdx == hRect.sidx ? hRect.w / devicePixelRatio : 0;
+                }
+            }
+        },
+        hooks: {
+            drawClear: [
+                u => {
+                    qt = qt || new Quadtree(0, 0, u.bbox.width, u.bbox.height);
+
+                    qt.clear();
+
+                    // force-clear the path cache to cause drawBars() to rebuild new quadtree
+                    u.series.forEach((s, i) => {
+                        if (i > 0)
+                            s._paths = null;
+                    });
+                },
+            ],
+        },
+        axes: [
+            {
+                label: "GDP",
+            },
+            {
+                label: "Income 1",
+            },
+            {
+                side: 1,
+                scale: 'y2',
+                stroke: "red",
+                label: "Income 2",
+                grid: {
+                    show: false,
+                },
+            },
+        ],
+        scales: {
+            x: {
+                time: false,
+            //	auto: false,
+            //	range: [0, 500],
+
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+            y: {
+            //	auto: false,
+            //	range: [0, 500],
+
+                // remove any scale padding, use raw data limits
+                range: guardedRange,
+            },
+            y2: {
+                dir: 1,
+                ori: 1,
+                range: guardedRange,
+            }
+        },
+        series: [
+            null,
+            {
+                facets: [
+                    {
+                        scale: 'x',
+                        auto: true,
+                    },
+                    {
+                        scale: 'y2',
+                        auto: true,
+                    }
+                ],
+                label: "Region A",
+                stroke: "red",
+                fill: "rgba(255,0,0,0.3)",
+                paths: drawPoints3,
+                values: legendValues,
+            },
+            {
+                facets: [
+                    {
+                        scale: 'x',
+                        auto: true,
+                    },
+                    {
+                        scale: 'y',
+                        auto: true,
+                    }
+                ],
+                label: "Region B",
+                stroke: "green",
+                fill: "rgba(0,255,0,0.3)",
+                paths: drawPoints3,
+                values: legendValues,
+            },
+            {
+                facets: [
+                    {
+                        scale: 'x',
+                        auto: true,
+                    },
+                    {
+                        scale: 'y',
+                        auto: true,
+                    }
+                ],
+                label: "Region C",
+                stroke: "blue",
+                fill: "rgba(0,0,255,0.3)",
+                paths: drawPoints3,
+                values: legendValues,
+            },
+            {
+                facets: [
+                    {
+                        scale: 'x',
+                        auto: true,
+                    },
+                    {
+                        scale: 'y',
+                        auto: true,
+                    }
+                ],
+                label: "Region E",
+                stroke: "orange",
+                fill: "rgba(255,128,0,0.3)",
+                paths: drawPoints3,
+                values: legendValues,
+            },
+        ],
+    };
+
+    let u2 = new uPlot(opts2, data2, document.body);
+</script>
+
+{#if data != null}
+    <div bind:this={plotWrapper}/>
+{:else}
+    <Card class="mx-4" body color="warning">Cannot render scatter: No data!</Card>
+{/if}
\ No newline at end of file