I’m sorry but I’m not sure how you’ve come up with that conclusion.
There are no images in use with the construction of the theme – if you are familiar with Bootstrap you’d be aware of this fact, its all pure css apart from the Glyphicons which are not used in the theme.
Here’s the navbar-inner CSS
navbar-inner{
min-height:50px;
padding-left:20px;
padding-right:20px;
background-color:#004D61;
background-image:-moz-linear-gradient(top, #004D61, #004D61);
background-image:-webkit-gradient(linear, 0 0, 0 100%, from(#004D61), to(#004D61));
background-image:-webkit-linear-gradient(top, #004D61, #004D61);
background-image:-o-linear-gradient(top, #004D61, #004D61);
background-image:linear-gradient(to bottom, #004D61, #004D61);
background-repeat:repeat-x;
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff004D61', endColorstr='#ff004D61', GradientType=0);
-webkit-border-radius:0px;-moz-border-radius:0px;border-radius:0px;*zoom:1;
}
as you can see, its all CSS and the best way to change those values is to use a child theme.
Hope that clears that misunderstanding there ??
Regards,
Zulf