Hello,
I have a problem with the background color for the NavBar component.
I can set a Bg Color but it does not show up in the work field.
But it does work for the NavBar Collapse component.
What do I wrong?
I work with BSS 7.0.0
Thanks in advance 
Hi PeterMusman, & welcome.
Not much info here to go on.
I presume your using a blank starter page.
In the attributes panel (bottom left) it will have your inline styles under ID & Classes.
Add the !important attribute at the end to overwrite the bootstrap style, like below without the equals & style will already be there.
style = background: rgb(224,23,23) !important;
You should try to put your styles in their own style sheet rather than inline. You could give your elements a class name then cut the inline style & paste it into the stylesheet you create.
You create the style sheets by right clicking styles in the design panel on the right and select new, then css file.
You create new JS files and pages this way too.