add background color for audio player

docs/sections.rst

@@ -151,6 +151,7 @@ This section is for add audio file with HTML5 player.::
   - type: audio
     title: Title of song 
     image: song.ogg
+    color: "#000" (optional)
 
 
 Author

prosopopee/themes/exposure/templates/sections/audio.html

@@ -6,7 +6,7 @@
 {% set format = extension %}
 {% endif %}
 {{ audio.copy() }}
-<div class="audio-player">
+<div class="audio-player" {% if section.color %} style="background: {{ section.color  }};"{% endif %}>
   <h2>{% if section.title %}{{ section.title }}{% else %}{{ audio }}{% endif %}</h2>
 <audio controls preload=none>
   <source src="{{ audio }}.{{ extension }}" type="audio/{{ format }}">

prosopopee/themes/material/templates/sections/audio.html

@@ -6,7 +6,7 @@
 {% set format = extension %}
 {% endif %}
 {{ audio.copy() }}
-<div class="audio-player">
+<div class="audio-player" {% if section.color %} style="background: {{ section.color  }};"{% endif %}>
   <h2>{% if section.title %}{{ section.title }}{% else %}{{ audio }}{% endif %}</h2>
 <audio controls preload=none>
   <source src="{{ audio }}.{{ extension }}" type="audio/{{ format }}">