diff --git a/doc/marketplace-scripts/checkerboard-test/logo.png b/doc/marketplace-scripts/checkerboard-test/logo.png
index bebb644..a3ef1eb 100644
--- a/doc/marketplace-scripts/checkerboard-test/logo.png
+++ b/doc/marketplace-scripts/checkerboard-test/logo.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0ec08d7610f373892433ed67f85c3afb377aa08a097cec2b0b94656f00540f68
-size 1301
+oid sha256:a42283fdc9a456ca75c7df4986843a1faf58445d6c496eb9da27551bfe26e7cc
+size 394
diff --git a/doc/marketplace-scripts/circle-grid/logo.png b/doc/marketplace-scripts/circle-grid/logo.png
deleted file mode 100644
index bebb644..0000000
--- a/doc/marketplace-scripts/circle-grid/logo.png
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0ec08d7610f373892433ed67f85c3afb377aa08a097cec2b0b94656f00540f68
-size 1301
diff --git a/doc/marketplace-scripts/circle-grid/metadata.json b/doc/marketplace-scripts/circle-grid/metadata.json
deleted file mode 100644
index e4b44a2..0000000
--- a/doc/marketplace-scripts/circle-grid/metadata.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "name": "Circle grid",
-  "description": "Concentric circles and calibration marks to test geometry and focus."
-}
diff --git a/doc/marketplace-scripts/circle-grid/source.js b/doc/marketplace-scripts/circle-grid/source.js
deleted file mode 100644
index 4639afa..0000000
--- a/doc/marketplace-scripts/circle-grid/source.js
+++ /dev/null
@@ -1,42 +0,0 @@
-function init() {}
-
-function tick(context, state) {
-    const { ctx, width, height, deltaMs } = context;
-    if (!ctx) {
-        return;
-    }
-    ctx.clearRect(0, 0, width, height);
-
-    const centerX = width / 2;
-    const centerY = height / 2;
-    const maxRadius = Math.min(width, height) * 0.45;
-    const pulse = 0.02 * (deltaMs || 0);
-    state.phase = (state.phase || 0) + pulse;
-
-    ctx.strokeStyle = "#38bdf8";
-    ctx.lineWidth = 2;
-    for (let radius = maxRadius; radius > 0; radius -= maxRadius / 6) {
-        ctx.globalAlpha = 0.2 + (radius / maxRadius) * 0.6;
-        ctx.beginPath();
-        ctx.arc(centerX, centerY, radius, 0, Math.PI * 2);
-        ctx.stroke();
-    }
-    ctx.globalAlpha = 1;
-
-    ctx.strokeStyle = "#22c55e";
-    ctx.lineWidth = 3;
-    const sweep = (Math.sin(state.phase) + 1) / 2;
-    const sweepRadius = maxRadius * (0.3 + sweep * 0.7);
-    ctx.beginPath();
-    ctx.arc(centerX, centerY, sweepRadius, 0, Math.PI * 2);
-    ctx.stroke();
-
-    ctx.strokeStyle = "#f8fafc";
-    ctx.lineWidth = 1;
-    ctx.beginPath();
-    ctx.moveTo(centerX, 0);
-    ctx.lineTo(centerX, height);
-    ctx.moveTo(0, centerY);
-    ctx.lineTo(width, centerY);
-    ctx.stroke();
-}
diff --git a/doc/marketplace-scripts/color-bars/logo.png b/doc/marketplace-scripts/color-bars/logo.png
index bebb644..0ccacea 100644
--- a/doc/marketplace-scripts/color-bars/logo.png
+++ b/doc/marketplace-scripts/color-bars/logo.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0ec08d7610f373892433ed67f85c3afb377aa08a097cec2b0b94656f00540f68
-size 1301
+oid sha256:6505257ea367c66b9a5e09f907d4855b75794066a882b035bc044a4209c054a2
+size 22437