Good evening~

Is this photo taken behind a windscreen glass? I really love the feeling of looking through glasses as the view will be slightly tinted.

Yes!

It's a common feature for most EDA softwares. Usually, fifferent layers have different default colors, like top layer is red and bottom layer is blue. You can turn of custom net color and they will show in the default colors.

They are actually net colors~ You can assign colors to nets or net classes in this tab. I would prefer assigning different protocols & power rails with different colors.

Yes, they are feedthrough capacitors. They can efficiently filter out high frequency interferences & spikes.

I haven't used them before... But one member in a group recommended them and I want to give it a try.

Yes! It's TPS63070.

It's KiCAD 9!