[0.17.67] Coal Liquefaction and Advanced Oil Processing show the same Icon in Techtree

[Yokmp]

Another minor issue.
As you can see in the image below, the advanced Oil Processing and the Coal Liquefaction share the same Icon in the Technology Window.
One of them needs to change i think.

[posila]

Vaclav is working on icons at the moment. No ETA on it being finished, so I'll move this to minor issues for time being.

[V453000]

Well I'm working on item icons, but revisiting technology icons will come eventually as well.