ion services and keeps track of the framework
	version.
</p>

<h2>
	Key concepts
</h2>

<hr/>

<h4>
	Frame
</h4>

<p>
	Each cycle of the main loop is called a frame. It is called that because
	during each loop you render a single frame of graphics.
</p>

<h4>
	Tick
</h4>

<p>
	There are 60 ticks in a second. If you have a 60hz monitor and you have
	turned on vsync or a frame limiter,	then a tick will be the same as a frame.
</p>

<p>
	This concept allows you to create applications as if they were always run