Hi Helmuth,
@zizub is correct here. Try to learn to use the inspector on your browser. CTRL+SHIFT+I for Chrome.
In your theme's styles.css file, add this line at the end of the file.
.breadcrumb {
background-color: transparent;
}
if it does not work, force it.
.breadcrumb {
background-color: transparent !important;
}
Clear Browser Cache alwaysV9 uses a cache to reduce your server loading times. If you are using Chrome, and in order to remove browser cache, you can bring up the inspector window, and Find the main "Network" Tab. And there is a checkbox with "Disable Cache". Tick that. So every reload with inspector on, will auto clear cache for you.
Alternatively, you can logout and relogin.
I use Chrome after Falk introduced it to me. I never changed since because I adore it a lot. So much better than Firefox.
Some other explanations regarding Styling in Version 9.Version 9 is a multi resource platform. It's foundation is Bootstrap, and a theme's styles.css top its up with additional parameters.
Resource 1. System load Bootstrap first, unless turned off. (Default)
Resource 2. Then we load our custom styles and anything declared in the Theme's Style.css will override Bootstrap automatically. (Override No. 1)
Resource 3. When you use Theme Engine customization, we remove theme default styles.css and rebuild a new version of Styles_xxxxx.css. (Override No.2)
Because of Resource No.1 is loaded, any theme has a responsive loaded (including v7 ones). As a result of this, a theme now can literally run without styles.css, but we forbid that for practical reasons. So in cascade action, If No.3 is present, No.3 + No.1 will work hand-in-hand.
The way I showed you is via step 2 override.