Maybe you will like the white background because some aspects are different from mine. And to trade, I only use the basics of trading: buy low and sell high.
I'm just trading to buy low, hold it, and sell it when the price increases. But I don't recommend you to trade 2 coins at once because it can make you confused to analyze it. But it's all up to you because only you know how to do it.
I'm also using the laptop when trading and a comfortable environment so I could focus and feel relaxed which could help me create good decisions while doing trading. I'm not using any tool but I make sure that I'm fully equipped with knowledge about what I'm doing. A wallet and exchange are the usual sites and applications that I often use. I also use google in doing basic research in times of confusion. As for me, your wisdom about market analysis is also important.