Add a css class "lightTheme" to the body, so that we can set the css style...

Add a css class "lightTheme" to the body, so that we can set the css style based on the current light theme

e.g. in css you can do:

/* For dark theme */
.hello {
   color: green;
}

/* For light theme */
body.lightTheme .hello {
   color: red;
}

src/gui/PassageDone.tw

+:: PassageDone
+
+<<if window.savedColorMap>>
+	<<addclass "body" "lightTheme">>
+<</if>>
+

src/uncategorized/options.tw

@@ -45,7 +45,7 @@ This save was created using FC version $ver build $releaseID.
 <br>
 ''COLOR CONTROL''
 <br>
-<<link "flip lighting">><<run flipColors(setup.lightColorMap)>><</link>>
+<<link "flip lighting">><<run flipColors(setup.lightColorMap)>><<goto "Options">><</link>>
 
 <br>
 ''IMAGES''