Everdo Desktop Update 1.2.17- Everdo

I was wondering what the icon which is next to each project name means. Don’t you think that there should be different icons for sequential and parallel projects?

Edit:
The order of appearing lists within the project is like this: Next, Waiting, Scheduled, Someday which means:
Next → my tasks
Waiting → not my tasks
Scheduled → my task

I suggest changing the order to:
Next → my tasks
Scheduled → my tasks
Waiting → not my tasks

When each section is really long then it is not comfortable to look at only my tasks. I know that a can collapse the Waiting section but the current sequence is a little bit confusing.

The other thing is inside the new item/edit form.
The lists (top right corner) that we can ascribe an item to are sorted as Next, Someday, Waiting, Schedule.

There should be a logical consistency.