diff --git a/rsconcept/frontend/src/components/ui/Flow/DynamicEdge.tsx b/rsconcept/frontend/src/components/ui/Flow/DynamicEdge.tsx
new file mode 100644
index 00000000..81c452e8
--- /dev/null
+++ b/rsconcept/frontend/src/components/ui/Flow/DynamicEdge.tsx
@@ -0,0 +1,36 @@
+import { EdgeProps, getStraightPath } from 'reactflow';
+
+import { PARAMETER } from '@/utils/constants';
+
+const RADIUS = PARAMETER.graphNodeRadius + PARAMETER.graphNodePadding;
+
+function DynamicEdge({ id, markerEnd, style, ...props }: EdgeProps) {
+  const sourceY = props.sourceY - PARAMETER.graphNodeRadius - PARAMETER.graphHandleSize;
+  const targetY = props.targetY + PARAMETER.graphNodeRadius + PARAMETER.graphHandleSize;
+
+  const dx = props.targetX - props.sourceX;
+  const dy = targetY - sourceY;
+  const distance = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
+
+  if (distance <= 2 * RADIUS) {
+    return null;
+  }
+
+  const ux = dx / distance;
+  const uy = dy / distance;
+
+  const [path] = getStraightPath({
+    sourceX: props.sourceX + ux * RADIUS,
+    sourceY: sourceY + uy * RADIUS,
+    targetX: props.targetX - ux * RADIUS,
+    targetY: targetY - uy * RADIUS
+  });
+
+  return (
+    <>
+      <path id={id} className='react-flow__edge-path' d={path} markerEnd={markerEnd} style={style} />
+    </>
+  );
+}
+
+export default DynamicEdge;
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/ASTFlow.tsx b/rsconcept/frontend/src/dialogs/DlgShowAST/ASTFlow.tsx
index 729aaba7..a6df36fe 100644
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/ASTFlow.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST/ASTFlow.tsx
@@ -13,9 +13,10 @@ interface ASTFlowProps {
   data: SyntaxTree;
   onNodeEnter: (node: Node) => void;
   onNodeLeave: (node: Node) => void;
+  onChangeDragging: (value: boolean) => void;
 }
 
-function ASTFlow({ data, onNodeEnter, onNodeLeave }: ASTFlowProps) {
+function ASTFlow({ data, onNodeEnter, onNodeLeave, onChangeDragging }: ASTFlowProps) {
   const [nodes, setNodes, onNodesChange] = useNodesState([]);
   const [edges, setEdges] = useEdgesState([]);
 
@@ -59,6 +60,8 @@ function ASTFlow({ data, onNodeEnter, onNodeLeave }: ASTFlowProps) {
       nodesFocusable={false}
       onNodeMouseEnter={(_, node) => onNodeEnter(node)}
       onNodeMouseLeave={(_, node) => onNodeLeave(node)}
+      onNodeDragStart={() => onChangeDragging(true)}
+      onNodeDragStop={() => onChangeDragging(false)}
       onNodesChange={onNodesChange}
       nodeTypes={ASTNodeTypes}
       edgeTypes={ASTEdgeTypes}
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/DlgShowAST.tsx b/rsconcept/frontend/src/dialogs/DlgShowAST/DlgShowAST.tsx
index 66c9a2f1..9d0da537 100644
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/DlgShowAST.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST/DlgShowAST.tsx
@@ -25,6 +25,8 @@ function DlgShowAST({ hideWindow, syntaxTree, expression }: DlgShowASTProps) {
   const handleHoverIn = useCallback((node: Node) => setHoverID(Number(node.id)), []);
   const handleHoverOut = useCallback(() => setHoverID(undefined), []);
 
+  const [isDragging, setIsDragging] = useState(false);
+
   return (
     <Modal
       readonly
@@ -37,8 +39,8 @@ function DlgShowAST({ hideWindow, syntaxTree, expression }: DlgShowASTProps) {
         className='px-2 py-1 rounded-2xl cc-blur max-w-[60ch] text-lg text-center'
         style={{ backgroundColor: colors.bgBlur }}
       >
-        {!hoverNode ? expression : null}
-        {hoverNode ? (
+        {!hoverNode || isDragging ? expression : null}
+        {!isDragging && hoverNode ? (
           <div>
             <span>{expression.slice(0, hoverNode.start)}</span>
             <span className='clr-selected'>{expression.slice(hoverNode.start, hoverNode.finish)}</span>
@@ -47,7 +49,12 @@ function DlgShowAST({ hideWindow, syntaxTree, expression }: DlgShowASTProps) {
         ) : null}
       </Overlay>
       <ReactFlowProvider>
-        <ASTFlow data={syntaxTree} onNodeEnter={handleHoverIn} onNodeLeave={handleHoverOut} />
+        <ASTFlow
+          data={syntaxTree}
+          onNodeEnter={handleHoverIn}
+          onNodeLeave={handleHoverOut}
+          onChangeDragging={setIsDragging}
+        />
       </ReactFlowProvider>
     </Modal>
   );
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdge.tsx b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdge.tsx
deleted file mode 100644
index 5794bf98..00000000
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdge.tsx
+++ /dev/null
@@ -1,28 +0,0 @@
-import { EdgeProps, getStraightPath } from 'reactflow';
-
-const NODE_RADIUS = 20;
-const EDGE_RADIUS = 25;
-
-function ASTEdge({ id, markerEnd, style, ...props }: EdgeProps) {
-  const scale =
-    EDGE_RADIUS /
-    Math.sqrt(
-      Math.pow(props.sourceX - props.targetX, 2) +
-        Math.pow(Math.abs(props.sourceY - props.targetY) + 2 * NODE_RADIUS, 2)
-    );
-
-  const [path] = getStraightPath({
-    sourceX: props.sourceX - (props.sourceX - props.targetX) * scale,
-    sourceY: props.sourceY - (props.sourceY - props.targetY - 2 * NODE_RADIUS) * scale - NODE_RADIUS,
-    targetX: props.targetX + (props.sourceX - props.targetX) * scale,
-    targetY: props.targetY + (props.sourceY - props.targetY - 2 * NODE_RADIUS) * scale + NODE_RADIUS
-  });
-
-  return (
-    <>
-      <path id={id} className='react-flow__edge-path' d={path} markerEnd={markerEnd} style={style} />
-    </>
-  );
-}
-
-export default ASTEdge;
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdgeTypes.ts b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdgeTypes.ts
index c88a8d33..19f9735d 100644
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdgeTypes.ts
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTEdgeTypes.ts
@@ -1,7 +1,7 @@
 import { EdgeTypes } from 'reactflow';
 
-import ASTEdge from './ASTEdge';
+import DynamicEdge from '@/components/ui/Flow/DynamicEdge';
 
 export const ASTEdgeTypes: EdgeTypes = {
-  dynamic: ASTEdge
+  dynamic: DynamicEdge
 };
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTLayout.ts b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTLayout.ts
index a848614e..8a124cf5 100644
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTLayout.ts
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTLayout.ts
@@ -2,23 +2,19 @@ import dagre from '@dagrejs/dagre';
 import { Edge, Node } from 'reactflow';
 
 import { ISyntaxTreeNode } from '@/models/rslang';
-
-const NODE_WIDTH = 44;
-const NODE_HEIGHT = 44;
-const HOR_SEPARATION = 40;
-const VERT_SEPARATION = 40;
+import { PARAMETER } from '@/utils/constants';
 
 export function applyLayout(nodes: Node<ISyntaxTreeNode>[], edges: Edge[]) {
   const dagreGraph = new dagre.graphlib.Graph().setDefaultEdgeLabel(() => ({}));
   dagreGraph.setGraph({
     rankdir: 'TB',
-    ranksep: VERT_SEPARATION,
-    nodesep: HOR_SEPARATION,
+    ranksep: 40,
+    nodesep: 40,
     ranker: 'network-simplex',
     align: undefined
   });
   nodes.forEach(node => {
-    dagreGraph.setNode(node.id, { width: NODE_WIDTH, height: NODE_HEIGHT });
+    dagreGraph.setNode(node.id, { width: 2 * PARAMETER.graphNodeRadius, height: 2 * PARAMETER.graphNodeRadius });
   });
 
   edges.forEach(edge => {
@@ -29,7 +25,7 @@ export function applyLayout(nodes: Node<ISyntaxTreeNode>[], edges: Edge[]) {
 
   nodes.forEach(node => {
     const nodeWithPosition = dagreGraph.node(node.id);
-    node.position.x = nodeWithPosition.x - NODE_WIDTH / 2;
-    node.position.y = nodeWithPosition.y - NODE_HEIGHT / 2;
+    node.position.x = nodeWithPosition.x - PARAMETER.graphNodeRadius;
+    node.position.y = nodeWithPosition.y - PARAMETER.graphNodeRadius;
   });
 }
diff --git a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTNode.tsx b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTNode.tsx
index a8ecb234..6cffbba5 100644
--- a/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTNode.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST/graph/ASTNode.tsx
@@ -15,6 +15,7 @@ interface ASTNodeInternal {
   id: string;
   data: ISyntaxTreeNode;
   dragging: boolean;
+  selected: boolean;
   xPos: number;
   yPos: number;
 }
@@ -32,10 +33,18 @@ function ASTNode(node: ASTNodeInternal) {
       />
       <Handle type='source' position={Position.Bottom} style={{ opacity: 0 }} />
       <div
-        className='font-math mt-1 w-fit px-1 text-center translate-x-[calc(-50%+20px)]'
-        style={{ backgroundColor: colors.bgDefault, fontSize: label.length > 3 ? 12 : 14 }}
+        className='font-math mt-1 w-fit text-center translate-x-[calc(-50%+20px)]'
+        style={{ fontSize: label.length > 3 ? 12 : 14 }}
       >
-        {label}
+        <div className='absolute top-0 left-0 text-center w-full'>{label}</div>
+        <div
+          style={{
+            WebkitTextStrokeWidth: 2,
+            WebkitTextStrokeColor: colors.bgDefault
+          }}
+        >
+          {label}
+        </div>
       </div>
     </>
   );
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
index ff81e8ec..9b019173 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
@@ -61,7 +61,9 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   const [edges, setEdges] = useEdgesState([]);
   const flow = useReactFlow();
   const store = useStoreApi();
+  const { addSelectedNodes } = store.getState();
 
+  const [showParamsDialog, setShowParamsDialog] = useState(false);
   const [filterParams, setFilterParams] = useLocalStorage<GraphFilterParams>(storage.rsgraphFilter, {
     noHermits: true,
     noTemplates: false,
@@ -81,16 +83,13 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
     allowConstant: true,
     allowTheorem: true
   });
-  const [showParamsDialog, setShowParamsDialog] = useState(false);
-  const [focusCst, setFocusCst] = useState<IConstituenta | undefined>(undefined);
-  const filteredGraph = useGraphFilter(controller.schema, filterParams, focusCst);
-
-  const [hidden, setHidden] = useState<ConstituentaID[]>([]);
-
   const [coloring, setColoring] = useLocalStorage<GraphColoring>(storage.rsgraphColoring, 'type');
 
-  const [isDragging, setIsDragging] = useState(false);
+  const [focusCst, setFocusCst] = useState<IConstituenta | undefined>(undefined);
+  const filteredGraph = useGraphFilter(controller.schema, filterParams, focusCst);
+  const [hidden, setHidden] = useState<ConstituentaID[]>([]);
 
+  const [isDragging, setIsDragging] = useState(false);
   const [hoverID, setHoverID] = useState<ConstituentaID | undefined>(undefined);
   const hoverCst = useMemo(() => {
     return hoverID && controller.schema?.cstByID.get(hoverID);
@@ -100,8 +99,6 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
 
   const [toggleResetView, setToggleResetView] = useState(false);
 
-  const { addSelectedNodes } = store.getState();
-
   const onSelectionChange = useCallback(
     ({ nodes }: { nodes: Node[] }) => {
       const ids = nodes.map(node => Number(node.id));
@@ -299,6 +296,8 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   const handleNodeClick = useCallback(
     (event: CProps.EventMouse, cstID: ConstituentaID) => {
       if (event.altKey) {
+        event.preventDefault();
+        event.stopPropagation();
         handleSetFocus(cstID);
       }
     },
@@ -445,7 +444,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
           hideZero
           totalCount={controller.schema?.stats?.count_all ?? 0}
           selectedCount={controller.selected.length}
-          position='top-[4.3rem] sm:top-[2rem] left-0'
+          position='top-[4.3rem] left-0'
         />
 
         {!isDragging && hoverCst && hoverCstDebounced && hoverCst === hoverCstDebounced ? (
@@ -465,7 +464,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
           </Overlay>
         ) : null}
 
-        <Overlay position='top-[8.15rem] sm:top-[5.9rem] left-0' className='flex gap-1'>
+        <Overlay position='top-[6.15rem] sm:top-[5.9rem] left-0' className='flex gap-1'>
           <div className='flex flex-col ml-2 w-[13.5rem]'>
             {selectors}
             {viewHidden}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
index 93a104c0..b951c7b6 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
@@ -87,7 +87,7 @@ function ViewHidden({ items, selected, toggleSelection, setFocus, schema, colori
           'text-sm',
           'cc-scroll-y'
         )}
-        style={{ maxHeight: calculateHeight(windowSize.isSmall ? '12.rem + 2px' : '16.4rem + 2px') }}
+        style={{ maxHeight: calculateHeight(windowSize.isSmall ? '10.4rem + 2px' : '12.5rem + 2px') }}
         initial={false}
         animate={!isFolded ? 'open' : 'closed'}
         variants={animateDropdown}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdge.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdge.tsx
deleted file mode 100644
index d291df5e..00000000
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdge.tsx
+++ /dev/null
@@ -1,27 +0,0 @@
-import { EdgeProps, getStraightPath } from 'reactflow';
-
-import { PARAMETER } from '@/utils/constants';
-
-function TGEdge({ id, markerEnd, style, ...props }: EdgeProps) {
-  const sourceY = props.sourceY - PARAMETER.graphNodeRadius;
-  const targetY = props.targetY + PARAMETER.graphNodeRadius;
-
-  const scale =
-    (PARAMETER.graphNodePadding + PARAMETER.graphNodeRadius) /
-    Math.sqrt(Math.pow(props.sourceX - props.targetX, 2) + Math.pow(Math.abs(sourceY - targetY), 2));
-
-  const [path] = getStraightPath({
-    sourceX: props.sourceX - (props.sourceX - props.targetX) * scale,
-    sourceY: sourceY - (sourceY - targetY) * scale,
-    targetX: props.targetX + (props.sourceX - props.targetX) * scale,
-    targetY: targetY + (sourceY - targetY) * scale
-  });
-
-  return (
-    <>
-      <path id={id} className='react-flow__edge-path' d={path} markerEnd={markerEnd} style={style} />
-    </>
-  );
-}
-
-export default TGEdge;
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdgeTypes.ts b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdgeTypes.ts
index 8c037345..c7a71392 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdgeTypes.ts
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGEdgeTypes.ts
@@ -1,7 +1,7 @@
 import { EdgeTypes } from 'reactflow';
 
-import TGEdge from './TGEdge';
+import DynamicEdge from '../../../../components/ui/Flow/DynamicEdge';
 
 export const TGEdgeTypes: EdgeTypes = {
-  termEdge: TGEdge
+  termEdge: DynamicEdge
 };
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGNode.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGNode.tsx
index 4a44a378..4c70f326 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGNode.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/graph/TGNode.tsx
@@ -35,12 +35,7 @@ function TGNode(node: TGNodeInternal) {
       <Handle type='target' position={Position.Top} style={{ opacity: 0 }} />
       <div
         className='w-full h-full cursor-default flex items-center justify-center rounded-full'
-        style={{
-          backgroundColor: !node.selected ? node.data.fill : colors.bgActiveSelection,
-          outlineOffset: '4px',
-          outlineStyle: 'solid',
-          outlineColor: node.selected ? colors.bgActiveSelection : 'transparent'
-        }}
+        style={{ backgroundColor: !node.selected ? node.data.fill : colors.bgActiveSelection }}
       >
         <div className='absolute top-[9px] left-0 text-center w-full'>{node.data.label}</div>
         <div
diff --git a/rsconcept/frontend/src/styling/overrides.css b/rsconcept/frontend/src/styling/overrides.css
index 9c5bc669..4bd97b0b 100644
--- a/rsconcept/frontend/src/styling/overrides.css
+++ b/rsconcept/frontend/src/styling/overrides.css
@@ -97,10 +97,6 @@
     box-shadow: 0 0 0 2px var(--cl-prim-bg-80) !important;
   }
 
-  &.selected {
-    border-color: var(--cd-bg-40);
-  }
-
   .dark & {
     color: var(--cd-fg-100);
     border-color: var(--cd-bg-40);
@@ -109,10 +105,6 @@
     &:hover:not(.selected) {
       box-shadow: 0 0 0 3px var(--cd-prim-bg-80) !important;
     }
-
-    &.selected {
-      border-color: var(--cl-bg-40);
-    }
   }
 }
 
@@ -124,6 +116,16 @@
   padding: 2px;
   width: 150px;
   height: 40px;
+
+  &.selected {
+    border-color: var(--cd-bg-40);
+  }
+
+  .dark & {
+    &.selected {
+      border-color: var(--cl-bg-40);
+    }
+  }
 }
 
 .react-flow__node-step,
@@ -134,10 +136,19 @@
   border-radius: 100%;
   width: 40px;
   height: 40px;
-}
 
-.react-flow__node-concept {
+  outline-offset: 4px;
+  outline-style: solid;
+  outline-color: transparent;
+
   &.selected {
+    outline-color: var(--cl-teal-bg-100);
     border-color: transparent;
   }
+
+  .dark & {
+    &.selected {
+      border-color: var(--cd-teal-bg-100);
+    }
+  }
 }
diff --git a/rsconcept/frontend/src/utils/constants.ts b/rsconcept/frontend/src/utils/constants.ts
index 03561c5b..f86466e2 100644
--- a/rsconcept/frontend/src/utils/constants.ts
+++ b/rsconcept/frontend/src/utils/constants.ts
@@ -21,6 +21,7 @@ export const PARAMETER = {
   ossDistanceX: 180, // pixels - insert x-distance between node centers
   ossDistanceY: 100, // pixels - insert y-distance between node centers
 
+  graphHandleSize: 3, // pixels - size of graph connection handle
   graphNodeRadius: 20, // pixels - radius of graph node
   graphNodePadding: 5, // pixels - padding of graph node
   graphHoverXLimit: 0.4, // ratio to clientWidth used to determine which side of screen popup should be