Using emojis in titles
Marvin has a built in way to add emojis to task, project and category titles.
To add an emoji type a colon (needs to be at the start or have a space before it) and then start typing the name of the emoji (or any word it contains) to narrow down your options in the autocomplete menu that appears.
Select the emoji you want by clicking it with the mouse or navigating with the keyboard arrows and pressing enter.
How to add emojis anywhere on a Mac
If you are on a Mac and want to insert emojis anywhere (notes, titles etc.) by using the regular menu use the following keyboard shortcut to open the emoji menu:
ctrl + cmd + space
How to add emojis anywhere on Windows
Click the touch keyboard at the bottom right of your screen. You might have to enable it first if you don't see the keyboard icon.
Then click on the smiley symbol to the left of the spacebar to open the emoji menu.
You can also press the Windows key + . and that should open the emoji menu as well: