Hi tammo,
we have successfully added multiple logos (left/middle/right) at custom Limesurvey themes. For example our "Backy" theme comes with these placeholders:
- Download theme:
survey-consulting.com/product/limesurvey-template-backy/
- Demo survey:
ls300demo.survey-consulting.com/index.ph...74?newtest=Y&lang=en
- Options:
survey-consulting.com/wp-content/uploads...ky_theme_options.png
Thing is that at LS 6.x defining the logo options at config.xml had several issues, see
bugs.limesurvey.org/view.php?id=18880
and
bugs.limesurvey.org/view.php?id=19086
.
So make sure to use the latest 6.x version when developing this. It includes the necessary fixes.
This is how we have defined the different image details at config.xml:
<backgroundimage type="buttons" category="Images" width="4" title="Background image" options="on|off" optionlabels="Yes|No">off</backgroundimage>
<backgroundimagefile type="imagefile" category="Images" width="6" title="Background image file" parent="backgroundimage"/>
<banner type="buttons" category="Images" width="4" title="Banner" options="on|off" optionlabels="Yes|No">off</banner>
<bannerfile type="imagefile" category="Images" width="6" title="Banner file" parent="banner"/>
<logoleft type="buttons" category="Images" width="4" title="Logo left" options="on|off" optionlabels="Yes|No">on</logoleft>
<logoleftfile type="imagefile" category="Images" width="6" title="Logo left file" parent="logoleft">./files/logo.png</logoleftfile>
<logomiddle type="buttons" category="Images" width="4" title="Logo middle" options="on|off" optionlabels="Yes|No">off</logomiddle>
<logomiddlefile type="imagefile" category="Images" width="6" title="Logo middle file" parent="logomiddle">./files/logo.png</logomiddlefile>
<logoright type="buttons" category="Images" width="4" title="Logo right" options="on|off" optionlabels="Yes|No">off</logoright>
<logorightfile type="imagefile" category="Images" width="6" title="Logo right file" parent="logoright">./files/logo.png</logorightfile>
<favicon type="buttons" category="Images" width="4" title="Favicon" options="on|off" optionlabels="Yes|No">on</favicon>
<faviconfile type="imagefile" category="Images" width="6" title="Favicon file" parent="favicon">./files/favicon.png</faviconfile>
Hope this helps!