Can we change the Font text & color for our modern SharePoint online UI

Sudharsan Kok thanks for the font so is this  a valid approach to follow:--

I can create a new theme. Color palette and fonts.

https://docs.microsoft.com/en-us/sharepoint/dev/general-development/color-palettes-and-fonts-in-sharepoint

Will need to export the theme, change it, then import it again.

https://pixelmill.com/changing-colors-modern-site/

In Powershell, run this:

Connect-SPOService -Url https://yourtenant.sharepoint.com

Enter your central admin credentials.

Get-SPOHideDefaultThemes

Now, define a variable and assign the JSON to it:

$themepalette = [paste the code here]

Next, run the Add-SPOTheme commandlet: Add-SPOTheme

-Name "Your Theme Name" -Palette $themepalette -IsInverted $false T

You can access it from the “Change the look” panel.

Is the above steps valid/recommended?

Thanks