object and edit

i appended an object from a file

then tried to edit the object but instead of being yellow inwas orange

what is tht orange and is there any meaning to it ?

Salutations

Okay, they only time I see orange outlines in Blender is when an object has UV seems. You can still edit the object. The orange just shows where the seems were set. To see examples of this checkout the wiki: http://wiki.blender.org/index.php/Manual/Unwrapping_a_Mesh

Good luck