The other thing is I suggest an option to toggle the color of the page from dark grey to white, the color you are using are a bit hard for the eye from my perspective, but for someone that work in a dark envirement might enjoy better, so I think it's better to have an option for that
For me, these dark themes hurts my eyes after a couple of minutes, so I agree with @kuroman It can be great if you turn on the light in the house because after 10 minutes I will end by saying "OhMyEy.es"
I know some people like to use a dark theme but it really hurts the eyes of some people. For example, me, after 10-15 minutes I am forced to zoom the page at 150% otherwise I am not able to read.
Point noted. It's good that you bring this up because I wasn't aware about this issue. I'll definitely add a light theme, although probably not on the super short term.
Kraken !! The exchange that I use is not there
I would like to see some altcoins listed on there as well.
Right now, the site looks a bit like bitcoinwisdom.com with only bitcoin listings with EUR and USD. If you manage to add altcoins then it means that alt day traders are able to use your service as well to monitor prices real time on different exchanges, all on one site.
If you can add some other exchanges in future that can be great (Kraken, Bitstamp, etc (at least the most popular))
This will certainly happen. All altcoins on Poloniex will be added over the next few days, and after that there are more exchanges lined up.
One more thing maybe you can add multi window trackers for those who want to enjoy arbitrage
Do you mean having more than one ticker at the same time, or instead of showing a "pure" ticker, showing a mathematical operation between two or more of them? (like, one minus the other)
Thanks for all of your feedback!