Iconic Implimentations

Okay, so throughout the weekend I spent a lot of time creating icons for my game; I decided a long time ago that I wanted/needed icons on my hubs to indicate to the player what the hubs where and a sort of indication of what they did. I also wanted an additional indication of how charged the end hubs are.
after playing around a bit I had to increase the size of the centre of the hubs again so that the icons in the middle were more visible.

This Is the start hub, standard battery to depict that it's charged/source of power

 

This is the end hub - an empty light-bulb to show that it needs to be powered, - the level of the inside rises the closer the hub is to being fully powered.

This is a standard hub; it's just a picture of a connection/extension lead; I researched for better icons to use, but this seemed the most fitting.

This is the colour combiner hub - it's basically a mixer. I thought about changing the sliders depending on what inputs are added, that might be something to add after testing. I would have liked to add colours to the sliders, or icons in general, but I thought that the colours would confuse the colours over the ACTUAL colours of the inputs and outputs.

This is the splitter hub, self explanatory  it seems less complicated than the other icons, so i might need to increase its quality at some point.

Additionally the hubs can be coloured: as I said before, colours might confuse the player, but I could always add in an option to change the colours in an options menu or something. the set colour will have to be determined after i have textured the hub itself (which I think I'll have to do soon)