PowerPoint Advanced

Hello Stefania

Thank you for your question.

You can adjust an image by selecting it, and then using the Picture toolbar to change the colour of the image.

If the Picture toolbar doesn't appear by itself when you click on the picture, then go to View - Toolbars and select Picture.

Click on the picture and click the Format Picture button on the Picture toolbar.

Under Image control, you can change the setting from Automatic to another type (e.g. greyscale) then click OK to see the result.

If you want to reverse what you've done, use Undo or go back into Format Picture and set the picture back to Automatic under Image Control.

I hope this helps.
Amanda