I'll try to keep this short and actionable.
Often when I'm working through an action queue in crafting, I cannot tell how far along I am just by looking at the colored circles representing the queue. The two colors representing the states free and queued look nearly identical to me. So, I'll usually just keep track of where I'm at via the events log. This is a bit cumbersome though when alt-tabbing in and out of the game.
Fortunately, this is the only part of the UI I've struggled with when it comes to my deuteranopia colorblindness. My suggestion is to have an alternative color set for the action queue indicators, or maybe some sort of text representation of it.
Picture for reference of UI section I am speaking about.