In the AlphaControls v6.45 you can do it using SkinProvider.OnAddItem event. Write here a code like this :
CODE
procedure TForm1.sSkinProvider1SkinItem(Item: TComponent; var CanBeAdded: Boolean; var SkinSection: String); begin if Item = Panel1 then SkinSection := 'HINT'; end;
Standard panel must be defined in the SkinManager.ThirdParty property for skinning.