[Icons] Icons are missing xmlns attribute

[eigentor]

Reporting this as a bug, even if it may be I use the ux-icons bundle not in the indended fashion. Feel free to change issue type if this is the case.

I installed the UX icons package and use it to just download the icons with like
console ux:icons:import flowbite:user-solid and reference them as background images with css.
The icons download just fine but I was surprised the browsers could not render them. It appears the xmlns attribute is missing
xmlns="http://www.w3.org/2000/svg" so the browsers do not render the icons as icons but as xml.
This happens independent of what library I use. I tried akar-icons, devicons and fa6-brands.
While in my case i can add the xmlns manually, the point of using ux-icons for me is not to manually wrangle files but to just download and enjoy.

As stated, maybe I am using it wrong :)

[seb-jean]

Related to #2345

[eigentor]

O.K. I could reopen the other issue. Should I do that and close this one? What I am guessing is everyone is using the icons only as inline svgs so the xlmns issue might not be one.

[smnandre]

You can also define default attributes via the bundle configuration, and only need to do it once for all your icons :)

[eigentor]

Now this sounds like a plan :)
I tried fiddling with config, here is my config:
config/packages/ux_icons.yaml

ux_icons:
    icon_dir: '%kernel.project_dir%/assets/willi'
    default_icon_attributes:
        xmlns: http://www.w3.org/2000/svg
        fill: red

While I managed to change the icon_dir, which proves the config is read, any attributes I add to default_icon_attributes are not respected, all when using
console ux:icons:import

[smnandre]

Oh, the options are handled on render time.. if you download them and serve them on your own, I have no idea right now... This was not on our mind when we worked on the bundle, but it is a 100% legit query :)

[CodeDuck42]

An option to preserve/set the xml namespace would be really nice. The icon files themselves would be svg complient and third party tools can use/view them. i.e. currently PhpStorm cannot show a preview of those downloaded files.

[skocdopolet]

also vote for the option to keep the xmlns attribute when downloading icons. If you want to use an SVG in a CSS file as a background-image, it is not possible without this attribute!

I solved it by downloading all the icons and manually editing the XML file.

[Kocal]

The xmlns attribute must definitely be added to the downloaded .svg icon. Anyone up for a PR?