diff --git a/packages/pl-fe/package.json b/packages/pl-fe/package.json
index 7415cb95a..54e1bf872 100644
--- a/packages/pl-fe/package.json
+++ b/packages/pl-fe/package.json
@@ -84,6 +84,7 @@
     "emoji-datasource": "15.0.1",
     "emoji-mart": "^5.6.0",
     "exifr": "^7.1.3",
+    "fast-average-color": "^9.5.0",
     "fasttext.wasm.js": "^1.0.0",
     "flexsearch": "^0.7.43",
     "fuzzysort": "^3.1.0",
diff --git a/packages/pl-fe/src/components/account.tsx b/packages/pl-fe/src/components/account.tsx
index 94b85bd4b..f2a4884a3 100644
--- a/packages/pl-fe/src/components/account.tsx
+++ b/packages/pl-fe/src/components/account.tsx
@@ -193,7 +193,7 @@ const Account = ({
       <HStack alignItems={actionAlignment} space={3} justifyContent='between'>
         <HStack alignItems='center' space={3} className='overflow-hidden'>
           <div className='rounded-lg'>
-            <Avatar src={account.avatar} size={avatarSize} alt={account.avatar_description} />
+            <Avatar src={account.avatar} size={avatarSize} alt={account.avatar_description} isCat={account.is_cat} />
             {emoji && (
               <Emoji
                 className='!absolute -right-1.5 bottom-0 size-5'
@@ -242,14 +242,14 @@ const Account = ({
   return (
     <div data-testid='account' className='group block w-full shrink-0' ref={overflowRef}>
       <HStack alignItems={actionAlignment} space={3} justifyContent='between'>
-        <HStack alignItems={withAccountNote || note ? 'top' : 'center'} space={3} className='overflow-hidden'>
+        <HStack alignItems={withAccountNote || note ? 'top' : 'center'} space={3}>
           {withAvatar && (
             <ProfilePopper
               condition={showAccountHoverCard}
               wrapper={(children) => <HoverAccountWrapper className='relative' accountId={account.id} element='span'>{children}</HoverAccountWrapper>}
             >
               <LinkEl className='rounded-lg' {...linkProps}>
-                <Avatar src={account.avatar} size={avatarSize} alt={account.avatar_description} />
+                <Avatar src={account.avatar} size={avatarSize} alt={account.avatar_description} isCat={account.is_cat} />
                 {emoji && (
                   <Emoji
                     className='!absolute -right-1.5 bottom-0 size-5'
diff --git a/packages/pl-fe/src/components/avatar-stack.tsx b/packages/pl-fe/src/components/avatar-stack.tsx
index 8d1bd01e4..7c41bf98c 100644
--- a/packages/pl-fe/src/components/avatar-stack.tsx
+++ b/packages/pl-fe/src/components/avatar-stack.tsx
@@ -27,6 +27,7 @@ const AvatarStack: React.FC<IAvatarStack> = ({ accountIds, limit = 3 }) => {
             src={account.avatar}
             alt={account.avatar_description}
             size={20}
+            isCat={account.is_cat}
           />
         </div>
       ))}
diff --git a/packages/pl-fe/src/components/still-image.tsx b/packages/pl-fe/src/components/still-image.tsx
index fd4c27217..1c5942463 100644
--- a/packages/pl-fe/src/components/still-image.tsx
+++ b/packages/pl-fe/src/components/still-image.tsx
@@ -8,6 +8,8 @@ interface IStillImage {
   alt?: string;
   /** Extra class names for the outer <div> container. */
   className?: string;
+  /** Extra class names for the inner <img> element. */
+  innerClassName?: string;
   /** URL to the image */
   src: string;
   /** Extra CSS styles on the outer <div> element. */
@@ -18,6 +20,8 @@ interface IStillImage {
   showExt?: boolean;
   /** Callback function if the image fails to load */
   onError?(): void;
+  /** Callback function if the image loads successfully */
+  onLoad?: React.ReactEventHandler<HTMLImageElement>;
   /** Treat as animated, no matter the extension */
   isGif?: boolean;
   /** Specify that the group is defined by the parent */
@@ -26,7 +30,7 @@ interface IStillImage {
 
 /** Renders images on a canvas, only playing GIFs if autoPlayGif is enabled. */
 const StillImage: React.FC<IStillImage> = ({
-  alt, className, src, style, letterboxed = false, showExt = false, onError, isGif, noGroup,
+  alt, className, innerClassName, src, style, letterboxed = false, showExt = false, onError, onLoad, isGif, noGroup,
 }) => {
   const { autoPlayGif } = useSettings();
 
@@ -37,16 +41,20 @@ const StillImage: React.FC<IStillImage> = ({
     src && !autoPlayGif && ((isGif) || src.endsWith('.gif') || src.startsWith('blob:'))
   );
 
-  const handleImageLoad = () => {
+  const handleImageLoad: React.ReactEventHandler<HTMLImageElement> = (e) => {
     if (hoverToPlay && canvas.current && img.current) {
       canvas.current.width = img.current.naturalWidth;
       canvas.current.height = img.current.naturalHeight;
       canvas.current.getContext('2d')?.drawImage(img.current, 0, 0);
     }
+
+    if (onLoad) {
+      onLoad(e);
+    }
   };
 
   /** ClassNames shared between the `<img>` and `<canvas>` elements. */
-  const baseClassName = clsx('block size-full', {
+  const baseClassName = clsx('block size-full', innerClassName, {
     'object-contain': letterboxed,
     'object-cover': !letterboxed,
   });
@@ -54,7 +62,7 @@ const StillImage: React.FC<IStillImage> = ({
   return (
     <div
       data-testid='still-image-container'
-      className={clsx(className, 'relative isolate overflow-hidden', { 'group': !noGroup })}
+      className={clsx(className, 'relative isolate', { 'group': !noGroup })}
       style={style}
     >
       <img
@@ -66,6 +74,7 @@ const StillImage: React.FC<IStillImage> = ({
         className={clsx(baseClassName, {
           'invisible group-hover:visible': hoverToPlay,
         })}
+        crossOrigin='anonymous'
       />
 
       {hoverToPlay && (
diff --git a/packages/pl-fe/src/components/ui/avatar.tsx b/packages/pl-fe/src/components/ui/avatar.tsx
index 7374c1f9e..8c87c36c8 100644
--- a/packages/pl-fe/src/components/ui/avatar.tsx
+++ b/packages/pl-fe/src/components/ui/avatar.tsx
@@ -1,4 +1,5 @@
 import clsx from 'clsx';
+import { FastAverageColor } from 'fast-average-color';
 import React, { useState } from 'react';
 import { defineMessages, useIntl } from 'react-intl';
 
@@ -15,22 +16,36 @@ const messages = defineMessages({
 interface IAvatar extends Pick<IStillImage, 'alt' | 'src' | 'onError' | 'className'> {
   /** Width and height of the avatar in pixels. */
   size?: number;
+  /** Whether the user is a cat. */
+  isCat?: boolean;
 }
 
+const fac = new FastAverageColor();
+
 /** Round profile avatar for accounts. */
 const Avatar = (props: IAvatar) => {
   const intl = useIntl();
 
-  const { alt, src, size = AVATAR_SIZE, className } = props;
+  const { alt, src, size = AVATAR_SIZE, className, isCat } = props;
 
+  const [color, setColor] = useState<string | undefined>(undefined);
   const [isAvatarMissing, setIsAvatarMissing] = useState<boolean>(false);
 
   const handleLoadFailure = () => setIsAvatarMissing(true);
 
+  const handleLoad = (e: React.SyntheticEvent<HTMLImageElement>) => {
+    const color = fac.getColor(e.currentTarget);
+    if (!color.error) {
+      setColor(color.hex);
+    }
+  };
+
   const style: React.CSSProperties = React.useMemo(() => ({
     width: size,
     height: size,
-  }), [size]);
+    fontSize: size,
+    color,
+  }), [size, color]);
 
   if (isAvatarMissing) {
     return (
@@ -38,8 +53,9 @@ const Avatar = (props: IAvatar) => {
         style={{
           width: size,
           height: size,
+          color,
         }}
-        className={clsx('flex items-center justify-center rounded-lg bg-gray-200 dark:bg-gray-900', className)}
+        className={clsx('flex items-center justify-center rounded-lg bg-gray-200 leading-[0] dark:bg-gray-900', isCat && 'avatar__cat', className)}
       >
         <Icon
           src={require('@tabler/icons/outline/photo-off.svg')}
@@ -51,11 +67,13 @@ const Avatar = (props: IAvatar) => {
 
   return (
     <StillImage
-      className={clsx('rounded-lg', className)}
+      className={clsx('rounded-lg leading-[0]', isCat && 'avatar__cat', className)}
+      innerClassName='rounded-lg'
       style={style}
       src={src}
       alt={alt || intl.formatMessage(messages.avatar)}
       onError={handleLoadFailure}
+      onLoad={handleLoad}
     />
   );
 };
diff --git a/packages/pl-fe/src/features/account/components/header.tsx b/packages/pl-fe/src/features/account/components/header.tsx
index 3b74b4770..e76e31a0f 100644
--- a/packages/pl-fe/src/features/account/components/header.tsx
+++ b/packages/pl-fe/src/features/account/components/header.tsx
@@ -657,6 +657,7 @@ const Header: React.FC<IHeader> = ({ account }) => {
                 alt={account.avatar_description}
                 size={96}
                 className='relative size-24 rounded-lg bg-white ring-4 ring-white black:ring-black dark:bg-primary-900 dark:ring-primary-900'
+                isCat={account.is_cat}
               />
             </a>
             {account.verified && (
diff --git a/packages/pl-fe/src/features/admin/components/report.tsx b/packages/pl-fe/src/features/admin/components/report.tsx
index e0eb2e20d..1276f1785 100644
--- a/packages/pl-fe/src/features/admin/components/report.tsx
+++ b/packages/pl-fe/src/features/admin/components/report.tsx
@@ -91,6 +91,7 @@ const Report: React.FC<IReport> = ({ id }) => {
             alt={targetAccount.avatar_description}
             size={32}
             className='overflow-hidden'
+            isCat={targetAccount.is_cat}
           />
         </Link>
       </HoverAccountWrapper>
diff --git a/packages/pl-fe/src/features/chats/components/chat-list-item.tsx b/packages/pl-fe/src/features/chats/components/chat-list-item.tsx
index 50094be7b..30be45ba5 100644
--- a/packages/pl-fe/src/features/chats/components/chat-list-item.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-list-item.tsx
@@ -94,6 +94,7 @@ const ChatListItem: React.FC<IChatListItemInterface> = ({ chat, onClick }) => {
             alt={chat.account.avatar_description}
             size={40}
             className='flex-none'
+            isCat={chat.account.is_cat}
           />
 
           <Stack alignItems='start' className='overflow-hidden'>
diff --git a/packages/pl-fe/src/features/chats/components/chat-message-list.tsx b/packages/pl-fe/src/features/chats/components/chat-message-list.tsx
index 84779fe6c..9ca0e3e89 100644
--- a/packages/pl-fe/src/features/chats/components/chat-message-list.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-message-list.tsx
@@ -186,7 +186,7 @@ const ChatMessageList: React.FC<IChatMessageList> = ({ chat }) => {
     return (
       <Stack alignItems='center' justifyContent='center' className='h-full grow'>
         <Stack alignItems='center' space={2}>
-          <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={75} />
+          <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={75} isCat={chat.account.is_cat} />
           <Text align='center'>
             <>
               <Text tag='span'>{intl.formatMessage(messages.blockedBy)}</Text>
diff --git a/packages/pl-fe/src/features/chats/components/chat-page/components/chat-page-main.tsx b/packages/pl-fe/src/features/chats/components/chat-page/components/chat-page-main.tsx
index a02691f69..07e7aa017 100644
--- a/packages/pl-fe/src/features/chats/components/chat-page/components/chat-page-main.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-page/components/chat-page-main.tsx
@@ -137,7 +137,7 @@ const ChatPageMain = () => {
             />
 
             <Link to={`/@${chat.account.acct}`}>
-              <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={40} className='flex-none' />
+              <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={40} className='flex-none' isCat={chat.account.is_cat} />
             </Link>
           </HStack>
 
@@ -157,7 +157,7 @@ const ChatPageMain = () => {
           src={require('@tabler/icons/outline/info-circle.svg')}
           component={() => (
             <HStack className='px-4 py-2' alignItems='center' space={3}>
-              <Avatar src={chat.account.avatar_static} alt={chat.account.avatar_description} size={50} />
+              <Avatar src={chat.account.avatar_static} alt={chat.account.avatar_description} size={50} isCat={chat.account.is_cat} />
               <Stack>
                 <Text weight='semibold'>{chat.account.display_name}</Text>
                 <Text size='sm' theme='primary'>@{chat.account.acct}</Text>
diff --git a/packages/pl-fe/src/features/chats/components/chat-search/results.tsx b/packages/pl-fe/src/features/chats/components/chat-search/results.tsx
index f7f33a336..e1f8b32e4 100644
--- a/packages/pl-fe/src/features/chats/components/chat-search/results.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-search/results.tsx
@@ -41,7 +41,7 @@ const Results = ({ accountSearchResult, onSelect, parentRef }: IResults) => {
       data-testid='account'
     >
       <HStack alignItems='center' space={2}>
-        <Avatar src={account.avatar} alt={account.avatar_description} size={40} />
+        <Avatar src={account.avatar} alt={account.avatar_description} size={40} isCat={account.is_cat} />
 
         <Stack alignItems='start'>
           <div className='flex grow items-center space-x-1'>
diff --git a/packages/pl-fe/src/features/chats/components/chat-widget/chat-settings.tsx b/packages/pl-fe/src/features/chats/components/chat-widget/chat-settings.tsx
index 78ed96db8..d28169b5e 100644
--- a/packages/pl-fe/src/features/chats/components/chat-widget/chat-settings.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-widget/chat-settings.tsx
@@ -113,7 +113,7 @@ const ChatSettings = () => {
 
       <Stack space={4} className='mx-auto w-5/6'>
         <HStack alignItems='center' space={3}>
-          <Avatar src={chat.account.avatar_static} alt={chat.account.avatar_description} size={50} />
+          <Avatar src={chat.account.avatar_static} alt={chat.account.avatar_description} size={50} isCat={chat.account.is_cat} />
           <Stack>
             <Text weight='semibold'>{chat.account.display_name}</Text>
             <Text size='sm' theme='primary'>@{chat.account.acct}</Text>
diff --git a/packages/pl-fe/src/features/chats/components/chat-widget/chat-window.tsx b/packages/pl-fe/src/features/chats/components/chat-widget/chat-window.tsx
index 2ebb08a89..93434b498 100644
--- a/packages/pl-fe/src/features/chats/components/chat-widget/chat-window.tsx
+++ b/packages/pl-fe/src/features/chats/components/chat-widget/chat-window.tsx
@@ -70,7 +70,7 @@ const ChatWindow = () => {
             <HStack alignItems='center' space={3}>
               {isOpen && (
                 <Link to={`/@${chat.account.acct}`}>
-                  <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={40} />
+                  <Avatar src={chat.account.avatar} alt={chat.account.avatar_description} size={40} isCat={chat.account.is_cat} />
                 </Link>
               )}
 
diff --git a/packages/pl-fe/src/features/directory/components/account-card.tsx b/packages/pl-fe/src/features/directory/components/account-card.tsx
index f06868295..73ce96767 100644
--- a/packages/pl-fe/src/features/directory/components/account-card.tsx
+++ b/packages/pl-fe/src/features/directory/components/account-card.tsx
@@ -58,6 +58,7 @@ const AccountCard: React.FC<IAccountCard> = ({ id }) => {
               alt={account.avatar_description}
               className='!absolute bottom-0 left-3 translate-y-1/2 bg-white ring-2 ring-white dark:bg-primary-900 dark:ring-primary-900'
               size={64}
+              isCat={account.is_cat}
             />
           </Link>
         </HoverAccountWrapper>
diff --git a/packages/pl-fe/src/features/group/group-timeline.tsx b/packages/pl-fe/src/features/group/group-timeline.tsx
index 34efe6d63..2d4314a91 100644
--- a/packages/pl-fe/src/features/group/group-timeline.tsx
+++ b/packages/pl-fe/src/features/group/group-timeline.tsx
@@ -77,7 +77,7 @@ const GroupTimeline: React.FC<IGroupTimeline> = (props) => {
             })}
           >
             <Link to={`/@${account.acct}`}>
-              <Avatar src={account.avatar} alt={account.avatar_description} size={42} />
+              <Avatar src={account.avatar} alt={account.avatar_description} size={42} isCat={account.is_cat} />
             </Link>
 
             <ComposeForm
diff --git a/packages/pl-fe/src/features/onboarding/steps/avatar-selection-step.tsx b/packages/pl-fe/src/features/onboarding/steps/avatar-selection-step.tsx
index 0e8591c6a..fd0bbba5b 100644
--- a/packages/pl-fe/src/features/onboarding/steps/avatar-selection-step.tsx
+++ b/packages/pl-fe/src/features/onboarding/steps/avatar-selection-step.tsx
@@ -75,7 +75,7 @@ const AvatarSelectionStep = ({ onNext }: { onNext: () => void }) => {
       <Stack space={10}>
         <div className='relative mx-auto rounded-lg bg-gray-200'>
           {account && (
-            <Avatar src={selectedFile || account.avatar} alt={account.avatar_description} size={175} />
+            <Avatar src={selectedFile || account.avatar} alt={account.avatar_description} size={175} isCat={account.is_cat} />
           )}
 
           {isSubmitting && (
diff --git a/packages/pl-fe/src/features/onboarding/steps/cover-photo-selection-step.tsx b/packages/pl-fe/src/features/onboarding/steps/cover-photo-selection-step.tsx
index 55232eca9..422660b4a 100644
--- a/packages/pl-fe/src/features/onboarding/steps/cover-photo-selection-step.tsx
+++ b/packages/pl-fe/src/features/onboarding/steps/cover-photo-selection-step.tsx
@@ -118,6 +118,7 @@ const CoverPhotoSelectionStep = ({ onNext }: { onNext: () => void }) => {
               <Avatar
                 src={account.avatar}
                 alt={account.avatar_description}
+                isCat={account.is_cat}
                 size={64}
                 className='-mt-8 mb-2 ring-2 ring-white dark:ring-primary-800'
               />
diff --git a/packages/pl-fe/src/features/ui/components/panels/user-panel.tsx b/packages/pl-fe/src/features/ui/components/panels/user-panel.tsx
index bc5cb8e5c..9aad816cc 100644
--- a/packages/pl-fe/src/features/ui/components/panels/user-panel.tsx
+++ b/packages/pl-fe/src/features/ui/components/panels/user-panel.tsx
@@ -53,8 +53,9 @@ const UserPanel: React.FC<IUserPanel> = ({ accountId, action, badges, domain })
               <Avatar
                 src={account.avatar}
                 alt={account.avatar_description}
+                isCat={account.is_cat}
                 size={80}
-                className='size-20 overflow-hidden bg-gray-50 ring-2 ring-white'
+                className='size-20 bg-gray-50 ring-2 ring-white'
               />
             </Link>
 
diff --git a/packages/pl-fe/src/layouts/home-layout.tsx b/packages/pl-fe/src/layouts/home-layout.tsx
index b213a1819..37f26690a 100644
--- a/packages/pl-fe/src/layouts/home-layout.tsx
+++ b/packages/pl-fe/src/layouts/home-layout.tsx
@@ -70,7 +70,7 @@ const HomeLayout: React.FC<IHomeLayout> = ({ children }) => {
             <CardBody>
               <HStack alignItems='start' space={2}>
                 <Link to={`/@${acct}`}>
-                  <Avatar src={avatar} alt={account?.avatar_description} size={42} />
+                  <Avatar src={avatar} alt={account?.avatar_description} isCat={account?.is_cat} size={42} />
                 </Link>
 
                 <div className='w-full translate-y-0.5'>
diff --git a/packages/pl-fe/src/styles/ui.scss b/packages/pl-fe/src/styles/ui.scss
index 4ae5e1263..9b5242a6f 100644
--- a/packages/pl-fe/src/styles/ui.scss
+++ b/packages/pl-fe/src/styles/ui.scss
@@ -42,4 +42,61 @@
 
 .underline-line-through {
   text-decoration: underline line-through;
-}
\ No newline at end of file
+}
+
+// Adapted from Iceshrimp which I guess took it from Misskey
+// https://iceshrimp.dev/iceshrimp/iceshrimp/src/branch/dev/packages/client/src/components/global/MkAvatar.vue
+.avatar__cat {
+  img {
+    position: absolute;
+    inset: 0;
+    z-index: 1;
+  }
+
+  &::before,
+	&::after {
+		background: #ebbcba;
+		border: solid 0.05em currentcolor;
+		box-sizing: border-box;
+		content: "";
+		display: inline-block;
+		height: 50%;
+		width: 50%;
+	}
+
+	&::before {
+		border-radius: 0 75% 75%;
+		transform: rotate(37.5deg) skew(30deg);
+	}
+
+	&::after {
+		border-radius: 75% 0 75% 75%;
+		transform: rotate(-37.5deg) skew(-30deg);
+	}
+
+	&:hover {
+		&::before {
+			animation: earwiggleleft 1s infinite;
+		}
+
+		&::after {
+			animation: earwiggleright 1s infinite;
+		}
+	}
+}
+
+@keyframes earwiggleleft {
+	0% { transform: rotate(37.6deg) skew(30deg); }
+	25% { transform: rotate(10deg) skew(30deg); }
+	50% { transform: rotate(20deg) skew(30deg); }
+	75% { transform: rotate(0deg) skew(30deg); }
+	100% { transform: rotate(37.6deg) skew(30deg); }
+}
+
+@keyframes earwiggleright {
+	0% { transform: rotate(-37.6deg) skew(-30deg); }
+	30% { transform: rotate(-10deg) skew(-30deg); }
+	55% { transform: rotate(-20deg) skew(-30deg); }
+	75% { transform: rotate(0deg) skew(-30deg); }
+	100% { transform: rotate(-37.6deg) skew(-30deg); }
+}
diff --git a/packages/pl-fe/yarn.lock b/packages/pl-fe/yarn.lock
index 43151bc6c..f642b4ba6 100644
--- a/packages/pl-fe/yarn.lock
+++ b/packages/pl-fe/yarn.lock
@@ -4787,6 +4787,11 @@ fake-indexeddb@^6.0.0:
   resolved "https://registry.yarnpkg.com/fake-indexeddb/-/fake-indexeddb-6.0.0.tgz#3173d5ad141436dace95f8de6e9ecdc3d9787d5d"
   integrity sha512-YEboHE5VfopUclOck7LncgIqskAqnv4q0EWbYCaxKKjAvO93c+TJIaBuGy8CBFdbg9nKdpN3AuPRwVBJ4k7NrQ==
 
+fast-average-color@^9.5.0:
+  version "9.5.0"
+  resolved "https://registry.yarnpkg.com/fast-average-color/-/fast-average-color-9.5.0.tgz#deade6bd998c0ea399a519ed1e2cd67ef673f112"
+  integrity sha512-nC6x2YIlJ9xxgkMFMd1BNoM1ctMjNoRKfRliPmiEWW3S6rLTHiQcy9g3pt/xiKv/D0NAAkhb9VyV+WJFvTqMGg==
+
 fast-deep-equal@^3.1.1, fast-deep-equal@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"