Screen mode is a setting that comes with Galaxy Devices and allows you to select a screen mode suitable for viewing movies or images or adjust the display color to your preference. Moreover the Adaptive display mode, you can adjust the display color balance by a color value and you can also adjust the colors at the edges of the screen.
In Galaxy S10 series Samsung has made some changes in the screen modes section and reduced it to two modes, while keeping the custom color settings alive.
These two modes include Vivid and Normal screen quality, Vivid mode works just like the adaptive mode and adds extra contrast with color correction to the display while Normal mode shows everything normally.
To tweak Screen Modes go to Settings > Display > Screen Mode, from here select a screen mode or customize the colors as you like.
Note: Advance settings are only available on Vivid mode and not in Natural mode.