Guild Wars 2

I notice on my hero sheet that some of my attributes are green and I have no idea why. 90% of my attributes have some sort of stat boost from armor/runes etc. but only 3 are green — can anyone explain what it means?

Thanks for enlightening me=)

http://wiki.guildwars2.com/wiki/Dynamic_level_adjustment

Dynamic level adjustment adjusts a character’s attributes and level based on the area they are in, either reducing them to match their current area in PvE¹, or increasing their attributes and levels (typically to 80) in WvW or Structured PvP. For example, in PvE, a character with an actual level of 50 in a level 10 area will have their attributes reduced to an “effective level” equal to a level 11 character (maximum level for the area +1). The effective level is shown as a green number next to a downwards arrow and the actual level on the experience bar and is stated under the actual level on the hero panel. Changes to attributes are also seen on the hero panel in green. Unaltered values for an attribute can be seen when hovering the mouse over that attribute.

Thanks, I feel quite enlightened!

The green stats are affected by equipped passive skills and/or maybe also by traits or
food (not really sure about that at the moment).

For example if you equip the signet that boosts your strength on a warrior, then you
strenght will be shown in green.

The good answer is all of the above. Green appear when your normal stats are modified. It could be a buff like a banner, signet, passive skills, boons, etc. But also when they are modified by the scaling in lower level maps.