As `spectrum` and `artwork` prefs are not handled by the default Settings handler we can't expect the values to be in the `prefs` element.

plugin/SqueezeESP32/HTML/EN/plugins/SqueezeESP32/settings/player.html

@@ -12,27 +12,27 @@
 		[% END %]
 
 		[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE" desc="PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE_DESC" %]
-			<input type="number" min="10" max= "50" step="5" class="stdedit" name="pref_spectrum_scale" id="spectrum_scale" value="[% prefs.pref_spectrum.scale %]" size="3">
+			<input type="number" min="10" max= "50" step="5" class="stdedit" name="pref_spectrum_scale" id="spectrum_scale" value="[% pref_spectrum.scale %]" size="3">
 		[% END %]
 
 		[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM" desc="PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_DESC" %]
 			[% "PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_SIZE" | string %]&nbsp
-			<input type="number" min="10" max= "50" step="5"class="stdedit" name="pref_spectrum_small_size" id="spectrum_small_size" value="[% prefs.pref_spectrum.small.size %]" size="3">
+			<input type="number" min="10" max= "50" step="5"class="stdedit" name="pref_spectrum_small_size" id="spectrum_small_size" value="[% pref_spectrum.small.size %]" size="3">
 			[% "PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_BAND" | string %]&nbsp
-			<input type="text" class="stdedit" name="pref_spectrum_small_band" id="spectrum_small_band" value="[% prefs.pref_spectrum.small.band %]" size="3">
+			<input type="text" class="stdedit" name="pref_spectrum_small_band" id="spectrum_small_band" value="[% pref_spectrum.small.band %]" size="3">
 		[% END %]
 
 		[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND" desc="PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND_DESC" %]
-			<input type="text" class="stdedit" name="pref_spectrum_full_band" id="spectrum_full_band" value="[% prefs.pref_spectrum.full.band %]" size="3">
+			<input type="text" class="stdedit" name="pref_spectrum_full_band" id="spectrum_full_band" value="[% pref_spectrum.full.band %]" size="3">
 		[% END %]
 
 		[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_ARTWORK" desc="PLUGIN_SQUEEZEESP32_ARTWORK_DESC" %]
 			[% "PLUGIN_SQUEEZEESP32_ARTWORK_ENABLE" | string %]&nbsp
-			<input type="checkbox" name="pref_artwork_enable" [% IF prefs.pref_artwork.enable %] checked [% END %]>&nbsp;
+			<input type="checkbox" name="pref_artwork_enable" [% IF pref_artwork.enable %] checked [% END %]>&nbsp;
 			[% "PLUGIN_SQUEEZEESP32_ARTWORK_X" | string %]&nbsp
-			<input type="text" class="stdedit" name="pref_artwork_x" id="artwork_x" value="[% prefs.pref_artwork.x %]" size="2">
+			<input type="text" class="stdedit" name="pref_artwork_x" id="artwork_x" value="[% pref_artwork.x %]" size="2">
 			[% "PLUGIN_SQUEEZEESP32_ARTWORK_Y" | string %]&nbsp
-			<input type="text" class="stdedit" name="pref_artwork_y" id="artwork_y" value="[% prefs.pref_artwork.y %]" size="2">
+			<input type="text" class="stdedit" name="pref_artwork_y" id="artwork_y" value="[% pref_artwork.y %]" size="2">
 		[% END %]
 
 		<hr>