You can use the emoji keyboard (Apple, Microsoft) to add images to your company values in Lattice.
Switch to admin, and then navigate to Settings > Company > Values.
Use the emoji keyboard to add images to the Value field(s).
Use the Save button to finalize your changes.
The emojis will appear in a variety of places throughout Lattice, including:
On the company values page
When giving feedback
When viewing feedback (if the feedback giver chose to select values)
Here's an example of what the company values page might look like with emojis: