Update app logo design

[ChristophWurst]

Is your feature request related to a problem? Please describe.

After all these years with the same unmodified icon I wonder if it's time to refresh it a bit.

Describe the solution you'd like

Like with the rest of our icons, move towards the design language of material icons.

Examples

• https://materialdesignicons.com/icon/email
• https://materialdesignicons.com/icon/email-outline

Describe alternatives you've considered

No response

Additional context

cc @jancborchardt @nimishavijay

[jancborchardt]

Probably makes sense to put that in line. Just a note though, materialdesignicons.com is a community site – we need to always check the official Material Design icons at https://material.io/icons before. :) (Also we use rounded filled icons, not outline.)

In this case it’s of course simple as it’s just an email icon, so it would be this: https://fonts.google.com/icons?selected=Material%20Icons%3Aemail%3A

[jancborchardt]

Also cc @cartierbresson @karlitschek regarding marketing and branding – this probably makes sense since we switch everything else to Material Design icons, so it doesn’t look out of place.

[karlitschek]

Sure. No strong opinion here

[ChristophWurst]

In this case it’s of course simple as it’s just an email icon, so it would be this: https://fonts.google.com/icons?selected=Material%20Icons%3Aemail%3A

Does anyone know if/how we need to attribute the icon source if we make a copy for our app icon?

[jancborchardt]

Does anyone know if/how we need to attribute the icon source if we make a copy for our app icon?

Material Design Icons are licensed under Apache License 2.0, these are the (human readable) conditions: https://en.wikipedia.org/wiki/Apache_License#Licensing_conditions

[ChristophWurst]

In every licensed file, original copyright, patent, trademark, and attribution notices must be preserved

The file at https://fonts.gstatic.com/s/i/materialicons/email/v18/24px.svg does not contain license information.

I suppose we can do it like Calendar and https://github.com/nextcloud/calendar/blob/main/img/LICENSES.md

[ChristophWurst]

Curiosity preview

[GretaD]

In every licensed file, original copyright, patent, trademark, and attribution notices must be preserved

The file at https://fonts.gstatic.com/s/i/materialicons/email/v18/24px.svg does not contain license information.

I suppose we can do it like Calendar and https://github.com/nextcloud/calendar/blob/main/img/LICENSES.md

i will do it like this then