No poisons
Poisons aren't applied yet. You can see how many poisons of selected type are remaining in your bags.
Configuration menu
You can choose which poison from your bags should be applied to which weapon.
One poison
One poison was applied.
No poisons (combat)
Same as previous, but in combat. Full opacity.
Configuration menu (drop-down list)
An example of how a list of available poisons might look like.
Two poisons
Poisons were applied to both weapons.
Two poisons (combat)
Save as previous, but in combat. Full opacity. Your can see remaining amount of charges and remaining time of both poisons.