protected void DrawTexturespaceBackground()
{
float num = Mathf.Max(this.maxRect.width, this.maxRect.height);
Vector2 vector = new Vector2(this.maxRect.xMin, this.maxRect.yMin);
float num2 = num * 0.5f;
float a = !EditorGUIUtility.isProSkin ? 0.08f : 0.15f;
float num4 = 8f;
SpriteEditorUtility.BeginLines(new Color(0f, 0f, 0f, a));
for (float i = 0f; i <= num; i += num4)
{
SpriteEditorUtility.DrawLine((Vector3) (new Vector2(-num2 + i, num2 + i) + vector), (Vector3) (new Vector2(num2 + i, -num2 + i) + vector));
}
SpriteEditorUtility.EndLines();
}