How to change target port stroke and target node stroke highlighted color when drag link from palette?

pinkcolor

How to change that pink color when drag link?
reference example https://gojs.net/latest/samples/draggableLink.html

If you are talking about customizing appearances when the user is drawing a new link, you want to customize the LinkingTool. Please read https://gojs.net/latest/intro/tools.html#LinkingToolAndRelinkingTool

i have found thins one when drag node to node

diagram.toolManager.linkingTool.temporaryFromNode = tempfromnode;

but i need to change the custom appearance when drag link from palette to canvas upon node https://gojs.net/latest/samples/draggableLink.html

Customize the temporary Nodes of the destination Diagram’s LinkingTool:
https://gojs.net/latest/api/symbols/LinkingBaseTool.html#temporaryFromPort
https://gojs.net/latest/api/symbols/LinkingBaseTool.html#temporaryToPort