Concerned about urine colour!

Hello. I'm really concerned about my chin Walt. The past week I've noticed his appetite is a little off which isn't unusual for him. He can go through phases of not eating much. He's in good form and just there he enjoyed some play time running and jumping around.
I noticed one spot in his cage that looked strange. His urine is very orange in colour. I have never noticed this colour so I am worried. Of course I googled it and that didn't help me at all with some of the things I read. Does...

Concerned about urine colour!