Node Editor - revert color indicator

Up until Blender 2.79 the color indicator was on the left Side of Nodes and had a small fixed size. In 2.79 Master and 2.8 this has ben changed - now the indicator always stretches to take up half of the space and has been moved to the right. While I aggree with the move to the right, I think the width of it should be small and fixed again. As it is now, longer socket names require the Node to be much wider than in the previous design and it looks more cluttered.