(Legacy) Adjust your backgrounds (rooms) in mmhmm for Windows

Note: This article covers adjusting your background on mmhmm for Windows which is a legacy application. Download the new mmhmm for the most up to date experience on Windows.

Table of contents

What are rooms?

Note: To use all of the rooms mmhmm has to offer, you must upgrade to a paid mmhmm account. Click here to learn more.


Rooms are what we call the backgrounds you use in mmhmm. To choose a room, click the Rooms tab on the right-hand panel, then pick one of the visible rooms, or click + More Rooms... to view all available rooms. 

There are several different types of rooms:

  • Still images
  • Dynamic rooms - Moving backgrounds (procedurally generated with math) with settings you control. Dynamic Rooms have a play button (triangle) icon. 

How to add your own custom room


You can also create your own room from any image or video. To do this, follow the steps below:

  1. Go to the Rooms panel on the right-hand side of mmhmm and click + More Rooms...
  2. Scroll to the bottom of the left-hand side column and select Add your own
  3. Here, click Add Room (or just drag an image into the space shown).
  4. From there you can pick any JPG, PNG, GIF, MOV, or MP4 file on your hard drive. After adding rooms you can close that room window to get it out of the way again. Your new rooms will appear at the bottom of the Rooms panel in the main mmhmm window.

To rearrange the order they appear, click on any room and drag it to the position you want.The first ten rooms are assigned shortcuts (⌘0-9) to make it easy to change rooms quickly.

Tip:For best results, use an image with a width-to-height pixel ratio of 16:9. We recommend 1920 x 1080 pixels, which is a common size that’s big enough to look great in mmhmm.

Using your real room as a background

To use your real room as your background, follow the steps below.

  1. Go to the Presenter panel on the right-hand side of the mmhmm window
  2. Under "Frame", select Full Frame mceclip0.png. You can drag the top and side edges of the frame to crop what you want to show. crop_frame_step_3.gif

Room settings

All Rooms have adjustable settings. Here's how to access them:

  1. Go to the"Rooms"panel on the right-hand side of mmhmm and select a room.
  2. Then, click on the gear icon in the lower right corner of the room's thumbnail.
Note:These settings only affect the room you have selected.


  • Horizontal and vertical tilt– Tilt is a useful tactic to give your room a sense of depth by angling the slides in the room. 

Some rooms, such as Dynamic rooms, have extra settings, such as speed controls.


Play around and experiment with Dynamic Room settings that you enjoy most. Clicking on the blue Reset button will change the settings back to their default.

To get out of room settings, use the < icon. This will take you back to the main panel.

How to remove rooms

You can remove any room that you don’t want to use anymore. Here's how:

  1. Go to the Rooms panel on the right-hand side of mmhmm
  2. Select a room you want to remove and then click on the gear icon.
  3. Next, click the ... icon next to the room name, and click Remove to remove it.

Tip: You can quickly edit or remove rooms using the right mouse button. Right-click a Room (or hold the Control key and click normally with the mouse or trackpad) to display the Edit and Remove menu.

To get out of room settings, use the < icon. This will take you back to the main panel.


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