well~! can it be 1024 by 1024

[lishuen]

infact I just have a 1024 by 1024 pic, but it use 1024 by 2048, is any one can help me? I have delete some pic to update the atlas,but it did not update to fit the size 1024 by 1024. and double click the atlas pic it come an "TypeLoadException: Could not load type 'SyntaxTree.VisualStudio.Unity.Bridge.ScriptAssetOpener' from assembly 'UnityVS.VersionSpecific'.
UnityEditor.DockArea:OnGUI()" tips on the Unity.

[ArenMook]

You have a lot of long and narrow sprites in your atlas. Unity is notoriously bad when it comes to packing those. Consider using 9-slicing to greatly reduce the size of your sprites. Remember, you can always composite the images together from multiple sprites, achieving the same look with much less texture space used.

As for the error, ask UnityVS.