Difference between Segoe Fluent Icons and Segoe MDL2 Icons

Question

i am reading MS Docs about Segoe Fluent Icons and Segoe MDL2 Icons, but i am a little confused.

for example both docs says that they support

and MDL2 included in Win10 and Fluent included in Win11 and Fluent is recommended.

however something is unclear for me for example :

MDL2 example is:

E700	GlobalNavigationButton

and Fluent example is:

	e700	GlobalNavButton

so i can see that MDL2 use E and Fluent is using e

so question is if i use lowercase e, then i am using Fluent? and if i use Uppercase E, i am using MDL2?

or this is just a typo issue.

Accepted Answer

Hello,

Welcome to Microsoft Q&A!

question is if i use lowercase e, then i am using Fluent? and if i use Uppercase E, i am using MDL2?

Uppercase and lowercase don't affect the font family you use. You still need to set the font family when you want to use different icons.

Here is a simple test result:

User's image

To make it clear, I'm using E701 - the Wifi icon for testing. If you don't set the font family, the icon will use Segoe Fluent Icons font by default in Windows 11. Uppercase and lowercase will give you the same icon.

If you want use MDL2, you need to set the font family explicitly like this:

Result:

User's image

Thank you.

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Difference between Segoe Fluent Icons and Segoe MDL2 Icons

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