It appears that there's folder normalization bug in Sigil 0.9.1: stylesheet links are no longer prefixed by
../Styles/.
I've attached a test case.
Steps to reproduce this issue:
1. Unpack the files and add blue.xhtml via Add existing file...
Result in 0.8.7:
Code:
<head>
<title/>
<link href="../Styles/Style0001.css" rel="stylesheet" type="text/css"/>
</head>
Result in 0.9.1:
Code:
<head>
<title/>
<link href="Style0001.css" rel="stylesheet" type="text/css"/>
</head>