fix: default subtile color

Author: l4rm4nd

myapp/templates/inventory.html

@@ -91,18 +91,18 @@ <h6>{{ entry.item.name }}</h6>
                     </div>
                     <div class="item-details">
                       {% if preferences.show_issue_date %}
-                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|darken:'35%' }}">
+                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|default:'#1e1e1e'|darken }}">
                         <i class="bi bi-calendar text-muted"></i> <span><b>{% trans "Issue Date" %}:</b> {{ entry.item.issue_date }}</span>
                       </div>
                       {% endif %}
                       {% if preferences.show_expiry_date %}
-                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|darken:'35%' }}">
+                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|default:'#1e1e1e'|darken }}">
                         <i class="bi bi-calendar-x text-muted"></i> <span><b>{% trans "Expiry Date" %}:</b> {{ entry.item.expiry_date }}</span>
                       </div>
                       {% endif %}
                       {% if entry.item.type != "loyaltycard" %}
                       {% if preferences.show_value %}
-                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|darken:'35%' }}">
+                      <div class="detail-item default-tile" style="background-color: {{ entry.item.tile_color|default:'#1e1e1e'|darken }}">
                         {% if entry.item.value_type == "percentage" %}
                         <i class="bi bi-percent text-muted"></i> <span><b>{% trans "Percentage" %}:</b> {{ entry.current_value|floatformat:2 }}</span>
                         {% elif entry.item.value_type == "money" %}
@@ -114,7 +114,7 @@ <h6>{{ entry.item.name }}</h6>
                       {% endif %}
                       {% if preferences.show_description %}
                       {% if entry.item.description %}
-                      <div class="default-tile" style="background-color: {{ entry.item.tile_color|darken:'35%'}};text-align: justify;">
+                      <div class="default-tile" style="background-color: {{ entry.item.tile_color|default:'#1e1e1e'|darken }};text-align: justify;">
                           <b>{% trans "Description" %}:</b><br>
                           <span class="content">{{ entry.item.description }}</span>
                       </div>