Hi Caruso, Elizabeth
Based on my research, the legacy Remove Background tool known for pixel‑level editing and the magenta selection workflow has been replaced in current Microsoft 365 builds by an AI‑driven experience. The earlier tool does not appear in the application, and no setting or option provides a way to restore it. In the current version, the available method you can try:
The newer experience does not provide the same level of fine manual control as the previous implementation. If the magenta selection and marking options are not visible, this is expected in some of the newer image editing workflows, where the interface has been simplified and manual controls may be reduced.
For scenarios requiring detailed or pixel‑level editing, the recommended approach is to use a separate image editing application, export the image with a transparent background (for example, PNG format), and then insert it back into PowerPoint as workaround
If this change significantly affects workflow, feedback can be submitted through Help > Feedback in the application so that it can be reviewed by the Microsoft product team.
(Please understand that we're not Microsoft support, this is a user-to-user support forum. Moderators have no backend access and cannot directly intervene in Microsoft products. We provide only technical guidance and best-practice recommendations based on reported issues).
I hope this information helps and if you have any question, please feel free to ask via comment section!
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