@sjb007: I think that this is a good and easy solution since I need also other edits such as changing the font colors. I will try this since my CMS strips out base64-encoded images from the SVG.
@Daniels118: I installed the plugin and it changes the file size a lot. In my case the file size of the ...

What I can tell you is that the svg file on your lagerraum web page does not contain the necessary embedded image data (base64 encoded) for the hatching pattern. When you export from SH3D it encodes the pattern as a single large encoded image. This is missing in the server delivered file.

Now, I ...

Yes, I know. I just didn't figure out how to compress the file properly and I prefer to use SVG. I tried with Inkscape but afterwards the file wasn't readable. I will find a solution

Yes, you seem to be right. The CMS must have done a conversion to the image. The file I uploaded was 1.2MB. When I download it from the website, it is just 34kb. So, somewhere in between the data has been removed / lost. I will investigate this but many thanks for your "outside view".

You can also check out the live result on this page when you scroll a bit down to "Grundskizze.

Yes, sure. This is the SVG file .

... and my code is quite simple:
<div class="floor-plans">
<img src="/assets/photos/s001-lu/layout/Grundriss_S001-LU.svg" alt="">
</div>

... and some CSS applied to the image:
.floor-plans img {
width: 100%;
height: 100%;
max-height: 500px;
}

I add the links since it didn't work to embed images from DropBox in the thread:

Image opened locally
Image embedded in website

When I embed a SVG file which I exported from Sweet Home 3D (Plan > Export to SVG format) into a website, the wall pattern disappears. Anyone has the same issue and eventually a solution?

Image opened locally:
https://www.dropbox.com/scl/fi/ns9diieafjof03o64fkpd/Screenshot-2024-05-07-at-17.53.28 ...

Thank you for the clarification.

Hello,

When I export a 2D floor plan I notice that the floor has a 75% opacity which I changed to 100% in the SVG file.

Is there anywhere an option to change this setting in the software rather than the SVG file?

Thank you,

Philip