diff --git a/src/resources/renderer/index.js b/src/resources/renderer/index.js
index c8e0051..3b50dd5 100644
--- a/src/resources/renderer/index.js
+++ b/src/resources/renderer/index.js
@@ -19,6 +19,145 @@ class CustomConstantProvider extends Blockly.zelos.ConstantProvider {
         this.FIELD_TEXT_FONTWEIGHT = 'bold';
         this.FIELD_TEXT_FONTFAMILY = '"Source Code Pro", monospace';
     }
+
+    init() {
+        super.init()
+        this.ROUNDEL = this.makeRoundel()
+        this.ROUNDEDINVERTED = this.makeRoundedInverted()
+    }
+
+    makeRoundedInverted() {
+        const maxWidth = this.MAX_DYNAMIC_CONNECTION_SHAPE_WIDTH;
+        const maxHeight = maxWidth * 2;
+
+        function makeMainPath(blockHeight, up, right) {
+            const remainingHeight = blockHeight > maxHeight ? blockHeight - maxHeight : 0;
+            const height = blockHeight > maxHeight ? maxHeight : blockHeight;
+            const radius = height / 2;
+            return (
+                Blockly.utils.svgPaths.lineOnAxis('h', (right ? 1 : -1) * radius) +
+                Blockly.utils.svgPaths.arc(
+                    'a',
+                    '0 0,0',
+                    radius,
+                    Blockly.utils.svgPaths.point((up ? .5 : -.5) * radius, (up ? -1 : 1) * radius),
+                ) +
+                Blockly.utils.svgPaths.lineOnAxis('v', (right ? 1 : -1) * remainingHeight) +
+                Blockly.utils.svgPaths.arc(
+                    'a',
+                    '0 0,0',
+                    radius,
+                    Blockly.utils.svgPaths.point((up ? -.5 : .5) * radius, (up ? -1 : 1) * radius),
+                ) +
+                Blockly.utils.svgPaths.lineOnAxis('h', (right ? -1 : 1) * radius)
+            );
+        }
+
+        return {
+            type: this.SHAPES.HEXAGONAL,
+            isDynamic: true,
+            width(height) {
+                const halfHeight = height / 2;
+                return halfHeight > maxWidth ? maxWidth : halfHeight;
+            },
+            height(height) {
+                return height;
+            },
+            connectionOffsetY(connectionHeight) {
+                return connectionHeight / 2;
+            },
+            connectionOffsetX(connectionWidth) {
+                return -connectionWidth;
+            },
+            pathDown(height) {
+                return makeMainPath(height, false, false);
+            },
+            pathUp(height) {
+                return makeMainPath(height, true, false);
+            },
+            pathRightDown(height) {
+                return makeMainPath(height, false, true);
+            },
+            pathRightUp(height) {
+                return makeMainPath(height, false, true);
+            },
+        };
+    }
+
+    makeRoundel() {
+        const maxWidth = this.MAX_DYNAMIC_CONNECTION_SHAPE_WIDTH;
+        const maxHeight = maxWidth * 2;
+
+        function makeMainPath(blockHeight, up, right) {
+            const height = blockHeight > maxHeight ? maxHeight : blockHeight;
+            const radius = height / 2;
+            return (
+                Blockly.utils.svgPaths.arc(
+                    'a',
+                    '0 0,1',
+                    radius,
+                    Blockly.utils.svgPaths.point((up ? -.5 : .5) * radius, (up ? -.5 : .5) * radius),
+                ) +
+                Blockly.utils.svgPaths.lineOnAxis('h', (right ? .5 : -.5) * radius) +
+                Blockly.utils.svgPaths.lineOnAxis('v', (up ? -1 : 1) * radius) +
+                Blockly.utils.svgPaths.lineOnAxis('h', (right ? -.5 : .5) * radius) +
+                Blockly.utils.svgPaths.arc(
+                    'a',
+                    '0 0,1',
+                    radius,
+                    Blockly.utils.svgPaths.point((up ? .5 : -.5) * radius, (up ? -.5 : .5) * radius),
+                )
+            );
+        }
+
+        return {
+            type: this.SHAPES.ROUND,
+            isDynamic: true,
+            width(height) {
+                const halfHeight = height / 2;
+                return halfHeight > maxWidth ? maxWidth : halfHeight;
+            },
+            height(height) {
+                return height;
+            },
+            connectionOffsetY(connectionHeight) {
+                return connectionHeight / 2;
+            },
+            connectionOffsetX(connectionWidth) {
+                return -connectionWidth;
+            },
+            pathDown(height) {
+                return makeMainPath(height, false, false);
+            },
+            pathUp(height) {
+                return makeMainPath(height, true, false);
+            },
+            pathRightDown(height) {
+                return makeMainPath(height, false, true);
+            },
+            pathRightUp(height) {
+                return makeMainPath(height, false, true);
+            },
+        };
+    }
+
+    /**
+     * @param {Blockly.RenderedConnection} connection
+     */
+    shapeFor(connection) {
+        let checks = connection.getCheck();
+        if (!checks && connection.targetConnection) {
+            checks = connection.targetConnection.getCheck();
+        }
+        if (connection.type == Blockly.ConnectionType.INPUT_VALUE || connection.type == Blockly.ConnectionType.OUTPUT_VALUE) {
+            if (checks && checks.indexOf('JSONArray') !== -1) {
+                return this.ROUNDEDINVERTED;
+            } else if (checks && checks.indexOf('JSONObject') !== -1) {
+                return this.ROUNDEL;
+            }
+        }
+        return super.shapeFor(connection)
+    }
 }
 
 export default class Renderer extends Blockly.zelos.Renderer {
diff --git a/vite.config.js b/vite.config.js
index 06fdb91..6909476 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -8,5 +8,8 @@ export default defineConfig({
 			'@blockly/continuous-toolbox',
 			'file-saver',
 		]
+	},
+	build: {
+		sourcemap: true
 	}
 });