Okay, so in Microsoft PowerPoint, we can format the background. So as usual common sense if you want to change the theme, you want to change the background, we come to the side, all these are the theme or they run as you can see here, then we can change the background using this one for my background, then we find these in here. So we can select a select few or we can select our gradient view and we can choose this one. So we can change the background are using something like this. So you can change to linear radial rectangular area, you can change the color, color as we can see here. Again, we can change the position and so then you can apply to all that we have a background here.