Add delete

src/gui/mainwindow.ui

@@ -20,9 +20,12 @@
    <string>ToDo</string>
   </property>
   <property name="styleSheet">
-   <string notr="true">background-color: rgb(249, 255, 251);</string>
+   <string notr="true"/>
   </property>
   <widget class="QWidget" name="centralwidget">
+   <property name="styleSheet">
+    <string notr="true">background-color: rgb(249, 255, 251);</string>
+   </property>
    <layout class="QGridLayout" name="gridLayout">
     <property name="leftMargin">
      <number>0</number>
@@ -105,7 +108,7 @@ border-bottom: 2px solid rgb(242, 242, 242)</string>
           </property>
           <property name="font">
            <font>
-            <pointsize>15</pointsize>
+            <pointsize>12</pointsize>
             <fontweight>Light</fontweight>
            </font>
           </property>
@@ -124,6 +127,8 @@ border-bottom: 2px solid rgb(242, 242, 242)</string>
 QListView::item {
    padding: 8px;
    border: none;
+   color: rgb(252, 252, 252);
+	font-size: 10pt;
 }
 
 QListView::item:selected {
@@ -140,7 +145,8 @@ QListView::item:selected:active {
 
 QListView::item:hover {
     background-color: rgb(152, 193, 116);
-}</string>
+}
+</string>
           </property>
           <property name="frameShadow">
            <enum>QFrame::Shadow::Plain</enum>
@@ -276,6 +282,23 @@ QListView::item:selected:!active {
 
 QListView::item:hover {
 	background-color: rgb(204, 204, 204);
+}
+
+QListWidget::indicator {
+    width: 18px;
+    height: 18px;
+    border: 1px solid rgb(119, 167, 92);
+    border-radius: 10px;
+    background: rgb(226, 226, 226);
+}
+
+QListWidget::indicator:checked {
+    background: rgb(119, 167, 92);
+    border: 2px solid rgb(119, 167, 92);
+}
+
+QListWidget::indicator:unchecked:hover {
+    border: 2px solid #aaa;
 }</string>
           </property>
           <property name="frameShadow">