Ionicons not showing properly

Hello guys, I am working on a project with Ionic 2, everything is going fine but I think that my icons are not showing as they should be.
As you can see on the image below, the checkboxes aren’t rendering as nice circles, I don’t know if that’s because I’m on a tablet. And also, on the upper right corner, the checkmark is very small.
Am I missing something? I inspected the console and there are no 404 for css files.