Camera skybox color affects UI elements

I am making a menu system for my game and the color of the camera skybox is affecting the color of the UI elements, as though they are transparent or something. When I am in the editor, the UI elements look correct but as soon as I try to run them in game, they become tinted with the skybox color applied to the camera.


Here is a panel in the editor:
157254-ui-panel-editor.png

Here is that same panel after I press the Play button:


How do I fix this? I want the UI to display exactly as it appears in the editor, without any additional color.
Thanks in advance for your help.

Turns out the asset I was using has transparency built into it. Changing the asset fixed the issue.