Computer-implemented methods, computer systems and computer program products for display state adjustment of tree-nodes. A tree has a plurality of nodes, wherein each node has a predefined control attribute and a predefined display attribute. A computer system changes the control attribute of a node that has a parent-node. The computer system adjusts the display attribute of the node with respect to the control attribute of the node and the display attribute of the parent-node according to predefined display rules. The computer system visualizes the display attribute of the node. If the node defines a sub-tree of the tree, the computer system repeats the adjusting and visualizing steps for each sub-node of the sub-tree.