how to change color in visual studio code example

Example 1: how to change to dark mode visual studio

Tools 
Options 
Environment
General
Change Color theme selection to dark 
OK

Example 2: how to change visual studio font

Tools
Options
Environment
Fonts and Colors

Example 3: shortcut to increase visuals studio text size

ctrl + MouseWheel Forward  : Zoom IN
ctrl + MouseWheel Backward : Zoom OUT