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Adds colorful icons to Claude and Gemini buttons, colors bold/italic text, and adds smooth visual effects throughout both interfaces.
// ==UserScript==
// @name Claude Interface Enhancement v2
// @description Adds colorful icons to Claude and Gemini buttons, colors bold/italic text, and adds smooth visual effects throughout both interfaces.
// @version 2
// @namespace ClaudeEnhancement
// @icon https://www.google.com/s2/favicons?sz=64&domain=claude.ai
// @match https://claude.ai/*
// @match https://claude.ai/chat/*
// @match https://gemini.google.com/*
// @match https://gemini.google.com/app/*
// @run-at document-start
// @grant none
// @license AGPL-3.0-or-later
// ==/UserScript==
(() => {
'use strict';
// ===== Configuration =====
const CONFIG = {
shortcuts: {
newChat: {
key: 'n',
modifierRequired: true // Ctrl/Cmd required
}
},
selectors: {
newChat: [
// Claude selectors
'button[aria-label*="new chat" i]',
'button[aria-label*="start" i]',
'a[href="/"]',
'button:has(svg path[d*="M12 4"])',
// Gemini selectors
'button[aria-label*="new chat" i]',
'button[jsname*="r8qRAd"]',
'a[href="/app"]'
]
},
animations: {
enabled: true,
duration: '0.3s',
fadeInDuration: '0.6s'
}
};
const COLORS = {
ORANGE: 'darkorange',
GREEN: 'springgreen',
LIME: 'limegreen',
DARK_GREEN: '#00ad00',
RED: 'crimson',
DESTRUCTIVE: '#e02e2a',
YELLOW: 'gold',
INDIGO: 'indigo',
GRAY: 'gray',
DIMGRAY: 'dimgray',
SKYBLUE: 'deepskyblue',
BLUE: '#4285f4',
VIOLET: 'darkviolet',
PURPLE: '#9c27b0',
CYAN: '#00bcd4',
PINK: '#e91e63',
TEAL: '#009688'
};
const OPACITY = {
HIGH: '0.9',
MEDIUM: '0.8',
LOW: '0.7',
FULL: '1'
};
// ===== Styles =====
const STYLES = `
/**************************************
Animations & Keyframes
**************************************/
@keyframes claude-fade-in {
from {
opacity: 0;
transform: translateY(10px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
@keyframes claude-pulse {
0%, 100% {
opacity: 1;
}
50% {
opacity: 0.7;
}
}
@keyframes claude-glow {
0%, 100% {
box-shadow: 0 0 5px currentColor;
}
50% {
box-shadow: 0 0 20px currentColor;
}
}
/**************************************
Button Color Schemes + Effects
(Works for both Claude & Gemini)
**************************************/
/* Copy button - Orange */
button[aria-label*="Copy" i] svg,
button[data-testid*="copy" i] svg,
button:has(svg path[d*="M9 9V4.5"]) svg,
button[aria-label*="복사" i] svg,
button[data-tooltip*="Copy" i] svg {
color: ${COLORS.ORANGE} !important;
opacity: ${OPACITY.HIGH};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Copy" i]:hover svg,
button[data-testid*="copy" i]:hover svg,
button:has(svg path[d*="M9 9V4.5"]):hover svg,
button[aria-label*="복사" i]:hover svg,
button[data-tooltip*="Copy" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.ORANGE}) !important;
opacity: ${OPACITY.FULL} !important;
}
/* Edit button - Yellow */
button[aria-label*="Edit" i] svg,
button:has(svg path[d*="M12.0303"]) svg,
button[aria-label*="수정" i] svg {
color: ${COLORS.YELLOW} !important;
opacity: ${OPACITY.MEDIUM};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Edit" i]:hover svg,
button:has(svg path[d*="M12.0303"]):hover svg,
button[aria-label*="수정" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.YELLOW}) !important;
opacity: ${OPACITY.FULL} !important;
}
/* Regenerate/Retry button - Sky Blue */
button[aria-label*="Retry" i] svg,
button[aria-label*="Regenerate" i] svg,
button:has(svg path[d*="M21.168"]) svg,
button[aria-label*="다시 생성" i] svg {
color: ${COLORS.SKYBLUE} !important;
opacity: ${OPACITY.HIGH};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Retry" i]:hover svg,
button[aria-label*="Regenerate" i]:hover svg,
button:has(svg path[d*="M21.168"]):hover svg,
button[aria-label*="다시 생성" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.SKYBLUE}) !important;
opacity: ${OPACITY.FULL} !important;
transform: rotate(180deg) !important;
}
/* Good response (thumbs up) - Green */
button[aria-label*="Good" i] svg,
button[data-testid*="good" i] svg,
button:has(svg path[d*="M7.493 18.5"]) svg,
button[aria-label*="좋아요" i] svg {
color: ${COLORS.DARK_GREEN} !important;
opacity: ${OPACITY.HIGH};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Good" i]:hover svg,
button[data-testid*="good" i]:hover svg,
button:has(svg path[d*="M7.493 18.5"]):hover svg,
button[aria-label*="좋아요" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.DARK_GREEN}) !important;
opacity: ${OPACITY.FULL} !important;
}
button[aria-label*="Good" i]:hover,
button[data-testid*="good" i]:hover,
button[aria-label*="좋아요" i]:hover {
background: rgba(0, 173, 0, 0.12) !important;
box-shadow: 0 0 12px rgba(0, 173, 0, 0.2) !important;
}
/* Bad response (thumbs down) - Red */
button[aria-label*="Bad" i] svg,
button[data-testid*="bad" i] svg,
button:has(svg path[d*="M16.5 7.493"]) svg,
button[aria-label*="싫어요" i] svg {
color: ${COLORS.RED} !important;
opacity: ${OPACITY.HIGH};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Bad" i]:hover svg,
button[data-testid*="bad" i]:hover svg,
button:has(svg path[d*="M16.5 7.493"]):hover svg,
button[aria-label*="싫어요" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.RED}) !important;
opacity: ${OPACITY.FULL} !important;
}
button[aria-label*="Bad" i]:hover,
button[data-testid*="bad" i]:hover,
button[aria-label*="싫어요" i]:hover {
background: rgba(220, 53, 69, 0.12) !important;
box-shadow: 0 0 12px rgba(220, 53, 69, 0.2) !important;
}
/* Share button - Sky Blue */
button[aria-label*="Share" i] svg,
button[aria-label*="공유" i] svg {
color: ${COLORS.SKYBLUE} !important;
opacity: ${OPACITY.MEDIUM};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="Share" i]:hover svg,
button[aria-label*="공유" i]:hover svg {
filter: drop-shadow(0 0 8px ${COLORS.SKYBLUE}) !important;
opacity: ${OPACITY.FULL} !important;
}
/* Delete button - Red */
button[aria-label*="Delete" i] svg,
button[aria-label*="삭제" i] svg {
color: ${COLORS.DESTRUCTIVE} !important;
}
button[aria-label*="Delete" i]:hover,
button[aria-label*="삭제" i]:hover {
background: rgba(224, 46, 42, 0.15) !important;
box-shadow: 0 0 15px rgba(224, 46, 42, 0.3) !important;
}
/* More actions button - Gray */
button[aria-label*="More" i] svg,
button[aria-label*="더보기" i] svg {
color: ${COLORS.GRAY} !important;
opacity: ${OPACITY.LOW};
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button[aria-label*="More" i]:hover svg,
button[aria-label*="더보기" i]:hover svg {
opacity: ${OPACITY.FULL} !important;
}
/**************************************
Bold Text Coloring
(Works for both Claude & Gemini)
**************************************/
/* Light mode - Purple */
.font-user-message b,
.font-user-message strong,
.font-claude-message b,
.font-claude-message strong,
[class*="message"] b,
[class*="message"] strong,
[class*="prose"] b,
[class*="prose"] strong,
div[class*="whitespace-pre-wrap"] b,
div[class*="whitespace-pre-wrap"] strong,
.model-response-text b,
.model-response-text strong,
.user-query b,
.user-query strong,
message-content b,
message-content strong,
b, strong {
color: ${COLORS.PURPLE} !important;
font-weight: 600 !important;
transition: color 0.2s ease !important;
}
/* Dark mode - Green */
.dark .font-user-message b,
.dark .font-user-message strong,
.dark .font-claude-message b,
.dark .font-claude-message strong,
.dark [class*="message"] b,
.dark [class*="message"] strong,
.dark [class*="prose"] b,
.dark [class*="prose"] strong,
.dark div[class*="whitespace-pre-wrap"] b,
.dark div[class*="whitespace-pre-wrap"] strong,
.dark .model-response-text b,
.dark .model-response-text strong,
.dark .user-query b,
.dark .user-query strong,
.dark message-content b,
.dark message-content strong,
.dark b,
.dark strong {
color: ${COLORS.GREEN} !important;
font-weight: 600 !important;
}
/**************************************
Italic Text Coloring
(Works for both Claude & Gemini)
**************************************/
/* Light mode - Cyan */
.font-user-message i,
.font-user-message em,
.font-claude-message i,
.font-claude-message em,
[class*="message"] i,
[class*="message"] em,
[class*="prose"] i,
[class*="prose"] em,
.model-response-text i,
.model-response-text em,
.user-query i,
.user-query em,
message-content i,
message-content em,
i, em {
color: ${COLORS.CYAN} !important;
font-style: italic !important;
opacity: 0.9;
}
/* Dark mode - Sky Blue */
.dark .font-user-message i,
.dark .font-user-message em,
.dark .font-claude-message i,
.dark .font-claude-message em,
.dark [class*="message"] i,
.dark [class*="message"] em,
.dark [class*="prose"] i,
.dark [class*="prose"] em,
.dark .model-response-text i,
.dark .model-response-text em,
.dark .user-query i,
.dark .user-query em,
.dark message-content i,
.dark message-content em,
.dark i,
.dark em {
color: ${COLORS.SKYBLUE} !important;
}
/**************************************
Links Enhancement
**************************************/
.font-claude-message a,
[class*="message"] a,
[class*="prose"] a,
.model-response-text a,
message-content a {
color: ${COLORS.BLUE} !important;
text-decoration: underline;
text-decoration-color: ${COLORS.BLUE}50;
transition: all 0.2s ease !important;
}
.font-claude-message a:hover,
[class*="message"] a:hover,
[class*="prose"] a:hover,
.model-response-text a:hover,
message-content a:hover {
color: ${COLORS.SKYBLUE} !important;
text-decoration-color: ${COLORS.SKYBLUE} !important;
text-shadow: 0 0 8px ${COLORS.SKYBLUE}80 !important;
}
/**************************************
Code Enhancement
**************************************/
/* Inline code */
code:not(pre code) {
color: ${COLORS.PINK} !important;
background: ${COLORS.PINK}15 !important;
padding: 2px 6px !important;
border-radius: 4px !important;
font-weight: 500 !important;
}
.dark code:not(pre code) {
color: ${COLORS.CYAN} !important;
background: ${COLORS.CYAN}15 !important;
}
/* Code block headers */
pre > div:first-child,
[class*="code-block"] > div:first-child {
background: linear-gradient(135deg, ${COLORS.PURPLE}30, ${COLORS.BLUE}30) !important;
border-bottom: 2px solid ${COLORS.PURPLE}50 !important;
}
/**************************************
Message Animations
**************************************/
/* Fade in new messages */
.font-claude-message,
.font-user-message,
[class*="message-content"],
.model-response-text,
.user-query,
message-content {
animation: claude-fade-in ${CONFIG.animations.fadeInDuration} ease-out !important;
}
/**************************************
Button Enhancements
**************************************/
button {
transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
button:hover {
transform: scale(1.05) !important;
}
button:active {
transform: scale(0.95) !important;
}
/* Icon smooth transitions */
button svg {
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
/* Focus effects */
button:focus-visible {
outline: 2px solid ${COLORS.BLUE} !important;
outline-offset: 2px !important;
box-shadow: 0 0 0 4px ${COLORS.BLUE}30 !important;
}
/**************************************
List Enhancements
**************************************/
/* Colored list markers */
.font-claude-message ul li::marker,
[class*="message"] ul li::marker,
[class*="prose"] ul li::marker,
.model-response-text ul li::marker,
message-content ul li::marker {
color: ${COLORS.PURPLE} !important;
}
.font-claude-message ol li::marker,
[class*="message"] ol li::marker,
[class*="prose"] ol li::marker,
.model-response-text ol li::marker,
message-content ol li::marker {
color: ${COLORS.BLUE} !important;
font-weight: bold !important;
}
.dark .font-claude-message ul li::marker,
.dark [class*="message"] ul li::marker,
.dark [class*="prose"] ul li::marker,
.dark .model-response-text ul li::marker,
.dark message-content ul li::marker {
color: ${COLORS.GREEN} !important;
}
/**************************************
Scrollbar Styling
**************************************/
::-webkit-scrollbar {
width: 10px;
height: 10px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: ${COLORS.GRAY}40;
border-radius: 5px;
transition: background 0.2s ease !important;
}
::-webkit-scrollbar-thumb:hover {
background: ${COLORS.GRAY}60;
}
.dark ::-webkit-scrollbar-thumb {
background: ${COLORS.GRAY}60;
}
.dark ::-webkit-scrollbar-thumb:hover {
background: ${COLORS.GRAY}80;
}
/**************************************
Blockquote Styling
**************************************/
blockquote {
border-left: 4px solid ${COLORS.PURPLE} !important;
padding-left: 16px !important;
opacity: 0.9;
}
.dark blockquote {
border-left-color: ${COLORS.GREEN} !important;
}
/**************************************
Misc Enhancements
**************************************/
/* Code block border radius */
pre {
border-radius: 8px !important;
}
/* Smooth transitions */
* {
transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1) !important;
}
`;
// ===== Utility Functions =====
const log = (...args) => {
console.log('[Claude Enhancement v2]', ...args);
};
const injectStyles = () => {
const existing = document.getElementById('claude-enhancement-styles-v2');
if (existing) {
existing.remove();
}
const styleSheet = document.createElement('style');
styleSheet.textContent = STYLES;
styleSheet.setAttribute('id', 'claude-enhancement-styles-v2');
const appendStyleSheet = (head) => {
if (head) {
head.appendChild(styleSheet);
log('✓ Visual effects loaded');
} else {
document.documentElement.appendChild(styleSheet);
}
};
if (document.head) {
appendStyleSheet(document.head);
} else {
document.addEventListener('DOMContentLoaded', () => appendStyleSheet(document.head), { once: true });
}
};
/**
* Apply colors to bold text
*/
const applyBoldColors = () => {
const isDark = document.documentElement.classList.contains('dark') ||
document.body.classList.contains('dark');
const boldColor = isDark ? COLORS.GREEN : COLORS.PURPLE;
const italicColor = isDark ? COLORS.SKYBLUE : COLORS.CYAN;
const boldElements = document.querySelectorAll('b:not([data-styled]), strong:not([data-styled])');
const italicElements = document.querySelectorAll('i:not([data-styled]), em:not([data-styled])');
boldElements.forEach(el => {
el.setAttribute('data-styled', 'true');
el.style.setProperty('color', boldColor, 'important');
el.style.setProperty('font-weight', '600', 'important');
});
italicElements.forEach(el => {
el.setAttribute('data-styled', 'true');
el.style.setProperty('color', italicColor, 'important');
});
};
const dispatchNewChatClick = () => {
for (const selector of CONFIG.selectors.newChat) {
const target = document.querySelector(selector);
if (target) {
target.dispatchEvent(new MouseEvent('click', { bubbles: true }));
log('New chat triggered');
return true;
}
}
return false;
};
const isShortcutMatch = (event) => {
const { key, modifierRequired } = CONFIG.shortcuts.newChat;
if (event.key.toLowerCase() !== key) return false;
if (event.altKey || event.shiftKey) return false;
if (modifierRequired && !event.metaKey && !event.ctrlKey) return false;
return true;
};
const handleKeyboardShortcut = (event) => {
if (event.defaultPrevented || event.repeat) return;
if (!isShortcutMatch(event)) return;
if (event.target.matches('input, textarea, [contenteditable="true"]')) return;
if (dispatchNewChatClick()) {
event.preventDefault();
}
};
/**
* Observe DOM changes
*/
const observeDOM = () => {
let timeout;
const observer = new MutationObserver(() => {
clearTimeout(timeout);
timeout = setTimeout(() => {
applyBoldColors();
}, 100);
});
observer.observe(document.body, {
childList: true,
subtree: true
});
};
// ===== Initialization =====
const init = () => {
log('Initializing with visual effects...');
injectStyles();
const applyWhenReady = () => {
if (document.body) {
applyBoldColors();
observeDOM();
setTimeout(applyBoldColors, 1000);
setTimeout(applyBoldColors, 3000);
} else {
setTimeout(applyWhenReady, 100);
}
};
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', applyWhenReady);
} else {
applyWhenReady();
}
document.addEventListener('keydown', handleKeyboardShortcut, true);
log('✓ Ready! Keyboard: Ctrl/Cmd + N for new chat');
};
init();
})();