diff --git a/res/css/_components.pcss b/res/css/_components.pcss
index adb30ad1944..f116e45c5e1 100644
--- a/res/css/_components.pcss
+++ b/res/css/_components.pcss
@@ -20,6 +20,7 @@
 @import "./components/views/dialogs/polls/_PollDetailHeader.pcss";
 @import "./components/views/dialogs/polls/_PollListItem.pcss";
 @import "./components/views/dialogs/polls/_PollListItemEnded.pcss";
+@import "./components/views/elements/_AppPermission.pcss";
 @import "./components/views/elements/_FilterDropdown.pcss";
 @import "./components/views/elements/_FilterTabGroup.pcss";
 @import "./components/views/elements/_LearnMore.pcss";
diff --git a/res/css/components/views/elements/_AppPermission.pcss b/res/css/components/views/elements/_AppPermission.pcss
new file mode 100644
index 00000000000..b91ed2b8099
--- /dev/null
+++ b/res/css/components/views/elements/_AppPermission.pcss
@@ -0,0 +1,77 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+Copyright 2019 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_AppPermission {
+    > div {
+        margin-bottom: 12px;
+    }
+
+    h4 {
+        margin: 0;
+        padding: 0;
+    }
+
+    .mx_AppPermission_smallText {
+        font-size: $font-12px;
+    }
+
+    .mx_AppPermission_bolder {
+        font-weight: var(--font-semi-bold);
+    }
+
+    .mx_AppPermission_helpIcon {
+        margin-top: 1px;
+        margin-right: 2px;
+        width: 10px;
+        height: 10px;
+        display: inline-block;
+
+        &::before {
+            display: inline-block;
+            background-color: $accent;
+            mask-repeat: no-repeat;
+            mask-size: 12px;
+            width: 12px;
+            height: 12px;
+            mask-position: center;
+            content: "";
+            vertical-align: middle;
+            mask-image: url("$(res)/img/feather-customised/help-circle.svg");
+        }
+    }
+
+    .mx_AppPermission_tooltip {
+        box-shadow: none;
+        background-color: $tooltip-timeline-bg-color;
+        color: $tooltip-timeline-fg-color;
+        border: none;
+        border-radius: 3px;
+        padding: 6px 8px;
+
+        &.mx_AppPermission_tooltip--dark {
+            .mx_Tooltip_chevron::after {
+                border-right-color: $tooltip-timeline-bg-color;
+            }
+        }
+
+        ul {
+            list-style-position: inside;
+            padding-left: 2px;
+            margin-left: 0;
+        }
+    }
+}
diff --git a/res/css/structures/_RightPanel.pcss b/res/css/structures/_RightPanel.pcss
index f76388296b3..1c34a46e07f 100644
--- a/res/css/structures/_RightPanel.pcss
+++ b/res/css/structures/_RightPanel.pcss
@@ -82,10 +82,6 @@ limitations under the License.
     mask-position: center;
 }
 
-$dot-size: 8px;
-$dot-offset: -3px;
-$pulse-color: $alert;
-
 .mx_RightPanel_pinnedMessagesButton {
     &::before {
         mask-image: url("$(res)/img/element-icons/room/pin.svg");
@@ -95,11 +91,11 @@ $pulse-color: $alert;
 
 .mx_RightPanel_headerButton_unreadIndicator_bg {
     position: absolute;
-    right: $dot-offset;
-    top: $dot-offset;
+    right: var(--RoomHeader-indicator-dot-offset);
+    top: var(--RoomHeader-indicator-dot-offset);
     margin: 4px;
-    width: $dot-size;
-    height: $dot-size;
+    width: var(--RoomHeader-indicator-dot-size);
+    height: var(--RoomHeader-indicator-dot-size);
     border-radius: 50%;
     transform: scale(1.6);
     transform-origin: center center;
@@ -108,8 +104,8 @@ $pulse-color: $alert;
 
 .mx_RightPanel_headerButton_unreadIndicator {
     position: absolute;
-    right: $dot-offset;
-    top: $dot-offset;
+    right: var(--RoomHeader-indicator-dot-offset);
+    top: var(--RoomHeader-indicator-dot-offset);
     margin: 4px;
 
     &.mx_Indicator_red {
diff --git a/res/css/structures/_RoomView.pcss b/res/css/structures/_RoomView.pcss
index 97f2a505f93..5ddfed21bae 100644
--- a/res/css/structures/_RoomView.pcss
+++ b/res/css/structures/_RoomView.pcss
@@ -262,12 +262,12 @@ limitations under the License.
     position: absolute;
     right: -3px;
     top: -3px;
-    width: $dot-size;
-    height: $dot-size;
+    width: var(--RoomHeader-indicator-dot-size);
+    height: var(--RoomHeader-indicator-dot-size);
     border-radius: 50%;
     transform: scale(1);
-    background: rgba($pulse-color, 1);
-    box-shadow: 0 0 0 0 rgba($pulse-color, 1);
+    background: rgba(var(--RoomHeader-indicator-pulseColor), 1);
+    box-shadow: 0 0 0 0 rgba(var(--RoomHeader-indicator-pulseColor), 1);
     animation: mx_Indicator_pulse 2s infinite;
     animation-iteration-count: 1;
 
diff --git a/res/css/views/rooms/_AppsDrawer.pcss b/res/css/views/rooms/_AppsDrawer.pcss
index 3b9413ef902..6738ed0fa45 100644
--- a/res/css/views/rooms/_AppsDrawer.pcss
+++ b/res/css/views/rooms/_AppsDrawer.pcss
@@ -318,7 +318,8 @@ limitations under the License.
     flex: 1;
 }
 
-.mx_AppPermissionWarning {
+.mx_AppWarning,
+.mx_AppPermission {
     text-align: center;
     display: flex;
     height: 100%;
@@ -333,60 +334,6 @@ limitations under the License.
     }
 }
 
-.mx_AppPermissionWarning_row {
-    margin-bottom: 12px;
-}
-
-.mx_AppPermissionWarning_smallText {
-    font-size: $font-12px;
-}
-
-.mx_AppPermissionWarning_bolder {
-    font-weight: var(--font-semi-bold);
-}
-
-.mx_AppPermissionWarning_helpIcon {
-    margin-top: 1px;
-    margin-right: 2px;
-    width: 10px;
-    height: 10px;
-    display: inline-block;
-
-    &::before {
-        display: inline-block;
-        background-color: $accent;
-        mask-repeat: no-repeat;
-        mask-size: 12px;
-        width: 12px;
-        height: 12px;
-        mask-position: center;
-        content: "";
-        vertical-align: middle;
-        mask-image: url("$(res)/img/feather-customised/help-circle.svg");
-    }
-}
-
-.mx_AppPermissionWarning_tooltip {
-    box-shadow: none;
-    background-color: $tooltip-timeline-bg-color;
-    color: $tooltip-timeline-fg-color;
-    border: none;
-    border-radius: 3px;
-    padding: 6px 8px;
-
-    &.mx_AppPermissionWarning_tooltip--dark {
-        .mx_Tooltip_chevron::after {
-            border-right-color: $tooltip-timeline-bg-color;
-        }
-    }
-
-    ul {
-        list-style-position: inside;
-        padding-left: 2px;
-        margin-left: 0;
-    }
-}
-
 .mx_AppTile_loading {
     display: flex;
     flex-direction: column;
diff --git a/res/css/views/rooms/_RoomHeader.pcss b/res/css/views/rooms/_RoomHeader.pcss
index 4cf1d44e102..c351791fea4 100644
--- a/res/css/views/rooms/_RoomHeader.pcss
+++ b/res/css/views/rooms/_RoomHeader.pcss
@@ -14,6 +14,12 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+:root {
+    --RoomHeader-indicator-dot-size: 8px;
+    --RoomHeader-indicator-dot-offset: -3px;
+    --RoomHeader-indicator-pulseColor: $alert;
+}
+
 .mx_RoomHeader {
     flex: 0 0 50px;
     border-bottom: 1px solid $primary-hairline-color;
diff --git a/src/components/views/elements/AppPermission.tsx b/src/components/views/elements/AppPermission.tsx
index 33ca2ba4d4c..2c1015bd1ab 100644
--- a/src/components/views/elements/AppPermission.tsx
+++ b/src/components/views/elements/AppPermission.tsx
@@ -115,9 +115,9 @@ export default class AppPermission extends React.Component<IProps, IState> {
         const warningTooltip = (
             <TextWithTooltip
                 tooltip={warningTooltipText}
-                tooltipClass="mx_AppPermissionWarning_tooltip mx_AppPermissionWarning_tooltip--dark"
+                tooltipClass="mx_AppPermission_tooltip mx_AppPermission_tooltip--dark"
             >
-                <span className="mx_AppPermissionWarning_helpIcon" />
+                <span className="mx_AppPermission_helpIcon" />
             </TextWithTooltip>
         );
 
@@ -137,20 +137,18 @@ export default class AppPermission extends React.Component<IProps, IState> {
         const encryptionWarning = this.props.isRoomEncrypted ? _t("Widgets do not use message encryption.") : null;
 
         return (
-            <div className="mx_AppPermissionWarning">
-                <div className="mx_AppPermissionWarning_row mx_AppPermissionWarning_bolder mx_AppPermissionWarning_smallText">
-                    {_t("Widget added by")}
-                </div>
-                <div className="mx_AppPermissionWarning_row">
+            <div className="mx_AppPermission">
+                <div className="mx_AppPermission_bolder mx_AppPermission_smallText">{_t("Widget added by")}</div>
+                <div>
                     {avatar}
-                    <h4 className="mx_AppPermissionWarning_bolder">{displayName}</h4>
-                    <div className="mx_AppPermissionWarning_smallText">{userId}</div>
+                    <h4 className="mx_AppPermission_bolder">{displayName}</h4>
+                    <div className="mx_AppPermission_smallText">{userId}</div>
                 </div>
-                <div className="mx_AppPermissionWarning_row mx_AppPermissionWarning_smallText">{warning}</div>
-                <div className="mx_AppPermissionWarning_row mx_AppPermissionWarning_smallText">
+                <div className="mx_AppPermission_smallText">{warning}</div>
+                <div className="mx_AppPermission_smallText">
                     {_t("This widget may use cookies.")}&nbsp;{encryptionWarning}
                 </div>
-                <div className="mx_AppPermissionWarning_row">
+                <div>
                     <AccessibleButton kind="primary_sm" onClick={this.props.onPermissionGranted}>
                         {_t("Continue")}
                     </AccessibleButton>
diff --git a/src/components/views/elements/AppWarning.tsx b/src/components/views/elements/AppWarning.tsx
index cb4802213e1..98b7f1954c7 100644
--- a/src/components/views/elements/AppWarning.tsx
+++ b/src/components/views/elements/AppWarning.tsx
@@ -22,7 +22,7 @@ interface IProps {
 
 const AppWarning: React.FC<IProps> = (props) => {
     return (
-        <div className="mx_AppPermissionWarning">
+        <div className="mx_AppWarning">
             <div>
                 <img src={require("../../../../res/img/warning.svg").default} alt="" />
             </div>