Introduction

Change the font size with keyboard shortcuts.

Shortcuts

VS Code - User Appearance

View -> Appearance -> Zoom In / Out

Shortcuts:

Zoom In: Ctrl + =

Zoom Out: Ctrl + -

Reset to default: Ctrl + NumPad0

Persisted Zoom Level

When you adjust the zoom level with the View > Zoom In / Out commands, the zoom level is persisted in the window.zoomLevel setting. The default value is 0 and each increment/decrement changes the zoom level by 20%

Please refer the link : VS Code Docs