There should be legends that explain what the colored lines in the graphs actually stand for

[r0ckarong]

There is no legend (even in the maximized view) that actually explains what the differently colored lines in "Burndown" or "Task Status" stand for. For „Task status“ those are the four states that a task can be in, this should be at least displayed at the bottom of the graph in the maximized view.

For "Burndown" I have absolutely no idea what it does, what's displayed there or how to make any sense of it without looking at the code. Here we need a legend that corresponds to the colors and lines used in the diagram that you can understand without having access to the rest of Rike. Generally speaking those line diagrams need to be designed in a way that they can be used on their without prior knowledge of Rike or being able to interact with them.