Change different object's stylesheet Qt Designer - qt

Question

How to change the stylesheet of a different object? Essentially, when I hover over an object, I want it to change a different object's stylesheet (in this case the background colour).
Entire XML Code for UI:
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>addClan</class>
<widget class="QMainWindow" name="addClan">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1070</width>
<height>720</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QLabel" name="background_image">
<property name="geometry">
<rect>
<x>-10</x>
<y>0</y>
<width>1081</width>
<height>741</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">border-image: url(:/addClan/background image.png);</string>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QGroupBox" name="clans_list">
<property name="geometry">
<rect>
<x>110</x>
<y>100</y>
<width>861</width>
<height>401</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox#clans_list{
border: 2px solid gray;
border-color: #424242;
background-color: white;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QGroupBox" name="saved_clan_0">
<property name="geometry">
<rect>
<x>1</x>
<y>0</y>
<width>859</width>
<height>80</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox{
border: 1px solid gray;
border-color: #424242;
background-color: white;
}
QGroupBox:hover{
background-color: red;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_shield_0">
<property name="geometry">
<rect>
<x>5</x>
<y>6</y>
<width>68</width>
<height>68</height>
</rect>
</property>
<property name="mouseTracking">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name_0">
<property name="geometry">
<rect>
<x>90</x>
<y>18</y>
<width>561</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QFrame" name="frame_0">
<property name="geometry">
<rect>
<x>1</x>
<y>1</y>
<width>857</width>
<height>78</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QFrame {
background-color: white;
}
QFrame:hover {
background-color: rgb(227, 227, 227);
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
</widget>
<zorder>frame_0</zorder>
<zorder>clan_name_0</zorder>
<zorder>clan_shield_0</zorder>
</widget>
<widget class="QGroupBox" name="saved_clan_1">
<property name="geometry">
<rect>
<x>1</x>
<y>80</y>
<width>859</width>
<height>80</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox{
border: 1px solid gray;
border-color: #424242;
background-color: white;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_shield_1">
<property name="geometry">
<rect>
<x>5</x>
<y>6</y>
<width>68</width>
<height>68</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name_1">
<property name="geometry">
<rect>
<x>90</x>
<y>18</y>
<width>561</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QFrame" name="frame_1">
<property name="geometry">
<rect>
<x>1</x>
<y>1</y>
<width>857</width>
<height>78</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QFrame {
background-color: white;
}
QFrame:hover {
background-color: rgb(227, 227, 227);
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
</widget>
<zorder>frame_1</zorder>
<zorder>clan_name_1</zorder>
<zorder>clan_shield_1</zorder>
</widget>
<widget class="QGroupBox" name="saved_clan_2">
<property name="geometry">
<rect>
<x>1</x>
<y>160</y>
<width>859</width>
<height>80</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox{
border: 1px solid gray;
border-color: #424242;
background-color: white;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_shield_2">
<property name="geometry">
<rect>
<x>5</x>
<y>6</y>
<width>68</width>
<height>68</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name_2">
<property name="geometry">
<rect>
<x>90</x>
<y>18</y>
<width>561</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QFrame" name="frame_2">
<property name="geometry">
<rect>
<x>1</x>
<y>1</y>
<width>857</width>
<height>78</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QFrame {
background-color: white;
}
QFrame:hover {
background-color: rgb(227, 227, 227);
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
</widget>
<zorder>frame_2</zorder>
<zorder>clan_name_2</zorder>
<zorder>clan_shield_2</zorder>
</widget>
<widget class="QGroupBox" name="saved_clan_3">
<property name="geometry">
<rect>
<x>1</x>
<y>240</y>
<width>859</width>
<height>80</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox{
border: 1px solid gray;
border-color: #424242;
background-color: white;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_shield_3">
<property name="geometry">
<rect>
<x>5</x>
<y>6</y>
<width>68</width>
<height>68</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name_3">
<property name="geometry">
<rect>
<x>90</x>
<y>18</y>
<width>561</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QFrame" name="frame_3">
<property name="geometry">
<rect>
<x>1</x>
<y>1</y>
<width>857</width>
<height>78</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QFrame {
background-color: white;
}
QFrame:hover {
background-color: rgb(227, 227, 227);
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
</widget>
<zorder>frame_3</zorder>
<zorder>clan_name_3</zorder>
<zorder>clan_shield_3</zorder>
</widget>
<widget class="QGroupBox" name="saved_clan_4">
<property name="geometry">
<rect>
<x>1</x>
<y>320</y>
<width>859</width>
<height>80</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox{
border: 1px solid gray;
border-color: #424242;
background-color: white;
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_shield_4">
<property name="geometry">
<rect>
<x>5</x>
<y>6</y>
<width>68</width>
<height>68</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name_4">
<property name="geometry">
<rect>
<x>90</x>
<y>18</y>
<width>561</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QFrame" name="frame_4">
<property name="geometry">
<rect>
<x>1</x>
<y>1</y>
<width>857</width>
<height>78</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true">QFrame {
background-color: white;
}
QFrame:hover {
background-color: rgb(227, 227, 227);
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
</widget>
<zorder>frame_4</zorder>
<zorder>clan_name_4</zorder>
<zorder>clan_shield_4</zorder>
</widget>
</widget>
<widget class="QPushButton" name="add_clan_button">
<property name="geometry">
<rect>
<x>109</x>
<y>520</y>
<width>861</width>
<height>81</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>14</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
</font>
</property>
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true">QPushButton {
background-color: qlineargradient(spread:pad, x1:0.0511364, y1:0.5, x2:0.938, y2:0.534091, stop:0 rgba(231, 163, 4, 255), stop:1 rgba(238, 211, 4, 255));
color: white;
border-radius: 10;
padding: 6;
border-style: outset;
border-width: 1;
border-top-color: rgb(135, 135, 135);
border-left-color: rgb(135, 135, 135);
border-right-color: rgb(0, 0, 0);
border-bottom-color: rgb(0, 0, 0);
}
QPushButton:pressed {
border-style: outset;
border-top-color: rgb(0, 0, 0);
border-left-color: rgb(0, 0, 0);
border-right-color: rgb(135, 135, 135);
border-bottom-color: rgb(135, 135, 135);
}</string>
</property>
<property name="text">
<string>ADD NEW CLAN</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
<property name="checked">
<bool>false</bool>
</property>
<property name="default">
<bool>false</bool>
</property>
<property name="flat">
<bool>false</bool>
</property>
</widget>
<widget class="QGroupBox" name="add_clan_group">
<property name="geometry">
<rect>
<x>220</x>
<y>150</y>
<width>631</width>
<height>301</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true">QGroupBox {
border: 2px solid gray;
border-color: #424242;
border-radius: 15px;
background-color: white
}</string>
</property>
<property name="title">
<string/>
</property>
<widget class="QLabel" name="clan_tag_label">
<property name="geometry">
<rect>
<x>20</x>
<y>10</y>
<width>191</width>
<height>51</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>16</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string>Clan Tag</string>
</property>
</widget>
<widget class="QLineEdit" name="clan_entry">
<property name="geometry">
<rect>
<x>20</x>
<y>60</y>
<width>461</width>
<height>41</height>
</rect>
</property>
<property name="font">
<font>
<family>Calibri</family>
<pointsize>18</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgb(222, 222, 222);
border-radius: 7;
border: 1px solid black</string>
</property>
<property name="text">
<string>#</string>
</property>
<property name="placeholderText">
<string>#</string>
</property>
</widget>
<widget class="QPushButton" name="search_clan_button">
<property name="geometry">
<rect>
<x>490</x>
<y>60</y>
<width>121</width>
<height>41</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>10</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
</font>
</property>
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true">QPushButton {
background-color: qlineargradient(spread:pad, x1:0.0511364, y1:0.5, x2:0.938, y2:0.534091, stop:0 rgba(231, 163, 4, 255), stop:1 rgba(238, 211, 4, 255));
color: white;
border-radius: 10;
padding: 6;
border-style: outset;
border-width: 1;
border-top-color: rgb(135, 135, 135);
border-left-color: rgb(135, 135, 135);
border-right-color: rgb(0, 0, 0);
border-bottom-color: rgb(0, 0, 0);
}
QPushButton:pressed {
border-style: outset;
border-top-color: rgb(0, 0, 0);
border-left-color: rgb(0, 0, 0);
border-right-color: rgb(135, 135, 135);
border-bottom-color: rgb(135, 135, 135);
}</string>
</property>
<property name="text">
<string>SEARCH</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
<property name="checked">
<bool>false</bool>
</property>
<property name="default">
<bool>false</bool>
</property>
<property name="flat">
<bool>false</bool>
</property>
</widget>
<widget class="QLabel" name="clan_shield">
<property name="geometry">
<rect>
<x>10</x>
<y>110</y>
<width>120</width>
<height>120</height>
</rect>
</property>
<property name="styleSheet">
<string notr="true"/>
</property>
<property name="text">
<string/>
</property>
<property name="scaledContents">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="clan_name">
<property name="geometry">
<rect>
<x>140</x>
<y>110</y>
<width>221</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>14</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="text">
<string/>
</property>
</widget>
<widget class="QTextEdit" name="clan_description">
<property name="geometry">
<rect>
<x>140</x>
<y>155</y>
<width>471</width>
<height>65</height>
</rect>
</property>
<property name="font">
<font>
<family>Calibri</family>
<pointsize>10</pointsize>
<weight>50</weight>
<bold>false</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgb(222, 222, 222);
border-radius: 7;
border: 1px solid black</string>
</property>
<property name="readOnly">
<bool>true</bool>
</property>
</widget>
<widget class="QLabel" name="no_clan">
<property name="geometry">
<rect>
<x>20</x>
<y>100</y>
<width>371</width>
<height>31</height>
</rect>
</property>
<property name="font">
<font>
<family>Calibri</family>
<pointsize>10</pointsize>
<weight>75</weight>
<bold>true</bold>
</font>
</property>
<property name="styleSheet">
<string notr="true">color: red</string>
</property>
<property name="text">
<string>No clan found! Please try again.</string>
</property>
<property name="alignment">
<set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
</property>
</widget>
<widget class="QPushButton" name="confirm_clan">
<property name="geometry">
<rect>
<x>20</x>
<y>230</y>
<width>591</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Supercell-Magic</family>
<pointsize>14</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
</font>
</property>
<property name="autoFillBackground">
<bool>false</bool>
</property>
<property name="styleSheet">
<string notr="true">QPushButton {
background-color: qlineargradient(spread:pad, x1:0.125, y1:0.466, x2:0.938, y2:0.472, stop:0 rgba(0, 144, 24, 255), stop:1 rgba(124, 255, 38, 255));
color: white;
border-radius: 10;
padding: 6;
border-style: outset;
border-width: 1;
border-top-color: rgb(135, 135, 135);
border-left-color: rgb(135, 135, 135);
border-right-color: rgb(0, 0, 0);
border-bottom-color: rgb(0, 0, 0);
}
QPushButton:pressed {
border-style: outset;
border-top-color: rgb(0, 0, 0);
border-left-color: rgb(0, 0, 0);
border-right-color: rgb(135, 135, 135);
border-bottom-color: rgb(135, 135, 135);
}</string>
</property>
<property name="text">
<string>CONFIRM SELECTION</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
<property name="checked">
<bool>false</bool>
</property>
<property name="default">
<bool>false</bool>
</property>
<property name="flat">
<bool>false</bool>
</property>
</widget>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1070</width>
<height>21</height>
</rect>
</property>
</widget>
</widget>
<resources>
<include location="Game Graphics/source.qrc"/>
</resources>
<connections/>
</ui>
To clarify, I want to make it so hovering over clan_shield_0 changes the background colour of frame_0. I know that hovering over frame_0 already changes its background colour, but I need clan_shield_0 to change frame_0's background colour too.