internal override void OnHeaderIconGUI(Rect iconRect)
{
Texture2D image = null;
bool flag = AssetPreview.IsLoadingAssetPreview(this.target.GetInstanceID());
image = AssetPreview.GetAssetPreview(this.target);
if (image == null)
{
if (flag)
{
base.Repaint();
}
image = AssetPreview.GetMiniThumbnail(this.target);
}
GUI.DrawTexture(iconRect, image);
}