The Showit design app has two settings that you can adjust to your liking. These preference settings can be found within your User Settings by clicking on your name in the bottom toolbar.
Light/Dark Mode
Looking to brighten things up a bit? Open up those curtains and shed some light on the situation with Light mode. Or, if you're burning the midnight oil and you need to dim it down, dark mode might be for you.
Density
Adjusting the density setting will affect the size of the components of the design app, making them appear larger or smaller to fit your needs.