feat: seasonal theme overlays + improved animated chat backgrounds

Adds 11 CSS-only seasonal overlays (Halloween, Christmas, New Year, Autumn,
April Fool's, Lunar New Year, Valentine's Day, St. Patrick's Day, Earth Day,
Deep Space, Retro Arcade) with date-based auto-detection and a manual override
dropdown in Settings → Appearance → Seasonal Theme. All themes respect
prefers-reduced-motion. SeasonalEffect mounts at z-index 9997 in App.tsx.

Also rewrites all 5 animated chat background keyframes for smoother, more
organic motion: Digital Rain gains a phosphor glow flicker; Star Drift now
loops each layer by exactly its own tile size (no more seam); Grid Pulse adds
an independent brightness oscillation at a prime period; Aurora Flow drives
all four gradient layers through distinct paths; Fireflies adds glow-pulse and
opacity-blink animations at prime periods for unsynchronised bioluminescence.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-06-14 00:33:04 -04:00
parent 107921e0d0
commit 6db07f1371
10 changed files with 1426 additions and 201 deletions
+39 -35
View File
@@ -2,10 +2,14 @@ import { CSSProperties } from 'react';
import { ChatBackground } from '../../state/settings';
import {
animRainKeyframe,
animRainGlowKeyframe,
animStarsDriftKeyframe,
animGridPulseKeyframe,
animGridBrightnessKeyframe,
animAuroraKeyframe,
animFirefliesKeyframe,
animFirefliesGlowKeyframe,
animFirefliesBlinkKeyframe,
} from '../../styles/Animations.css';
export const BG_OPTIONS: { value: ChatBackground; label: string }[] = [
@@ -197,19 +201,19 @@ const DARK: Record<ChatBackground, CSSProperties> = {
].join(','),
},
// Animated: Matrix digital rain — scrolling vertical green stripes
// Animated: Matrix digital rain — scrolling stripe columns + phosphor glow flicker
'anim-rain': {
backgroundColor: '#010804',
backgroundImage: [
'repeating-linear-gradient(180deg, rgba(0,255,136,0.13) 0px, rgba(0,255,136,0.13) 1px, transparent 1px, transparent 20px)',
'repeating-linear-gradient(180deg, rgba(0,255,136,0.16) 0px, rgba(0,255,136,0.16) 1px, transparent 1px, transparent 20px)',
'repeating-linear-gradient(180deg, rgba(0,255,136,0.07) 0px, rgba(0,255,136,0.07) 1px, transparent 1px, transparent 8px)',
].join(','),
backgroundSize: '40px 200px, 12px 200px',
backgroundPosition: '0 0, 0 0',
animation: `${animRainKeyframe} 8s linear infinite`,
animation: `${animRainKeyframe} 8s linear infinite, ${animRainGlowKeyframe} 2.1s ease-in-out infinite`,
},
// Animated: drifting star field — three layers at different speeds
// Animated: drifting star field — three seamlessly-tiling layers at different speeds
'anim-stars': {
backgroundColor: '#050510',
backgroundImage: [
@@ -219,10 +223,10 @@ const DARK: Record<ChatBackground, CSSProperties> = {
].join(','),
backgroundSize: '130px 130px, 190px 190px, 260px 260px',
backgroundPosition: '0 0, 65px 32px, 32px 97px',
animation: `${animStarsDriftKeyframe} 25s linear infinite`,
animation: `${animStarsDriftKeyframe} 30s linear infinite`,
},
// Animated: neon grid pulse — grid lines that expand/contract
// Animated: neon grid pulse — size breathe + independent brightness oscillation
'anim-pulse': {
backgroundColor: '#030508',
backgroundImage: [
@@ -232,34 +236,34 @@ const DARK: Record<ChatBackground, CSSProperties> = {
'linear-gradient(90deg, rgba(0,212,255,0.06) 1px, transparent 1px)',
].join(','),
backgroundSize: '60px 60px, 60px 60px, 12px 12px, 12px 12px',
animation: `${animGridPulseKeyframe} 4s ease-in-out infinite`,
animation: `${animGridPulseKeyframe} 4s ease-in-out infinite, ${animGridBrightnessKeyframe} 3.3s ease-in-out infinite`,
},
// Animated: aurora borealis — slowly drifting gradient bands
// Animated: aurora borealis — four bands each travel an independent path
'anim-aurora': {
backgroundColor: '#020a10',
backgroundImage: [
'radial-gradient(ellipse at 20% 30%, rgba(0,255,136,0.10) 0%, transparent 55%)',
'radial-gradient(ellipse at 80% 70%, rgba(0,100,255,0.10) 0%, transparent 55%)',
'radial-gradient(ellipse at 50% 10%, rgba(191,95,255,0.08) 0%, transparent 50%)',
'radial-gradient(ellipse at 60% 90%, rgba(0,212,255,0.08) 0%, transparent 50%)',
'radial-gradient(ellipse 80% 60% at 20% 30%, rgba(0,255,136,0.12) 0%, transparent 70%)',
'radial-gradient(ellipse 70% 50% at 80% 70%, rgba(0,100,255,0.12) 0%, transparent 70%)',
'radial-gradient(ellipse 90% 70% at 50% 10%, rgba(191,95,255,0.09) 0%, transparent 65%)',
'radial-gradient(ellipse 75% 55% at 60% 90%, rgba(0,212,255,0.09) 0%, transparent 65%)',
].join(','),
backgroundSize: '200% 200%',
backgroundPosition: '0% 0%',
animation: `${animAuroraKeyframe} 20s ease-in-out infinite`,
backgroundSize: '200% 200%, 250% 250%, 300% 300%, 220% 220%',
backgroundPosition: '0% 0%, 100% 0%, 50% 100%, 0% 50%',
animation: `${animAuroraKeyframe} 28s ease-in-out infinite`,
},
// Animated: fireflies — three layers of glowing dots at different speeds
// Animated: fireflies — drift + brightness glow + opacity blink at prime periods
'anim-fireflies': {
backgroundColor: '#030508',
backgroundImage: [
'radial-gradient(circle, rgba(255,220,50,0.55) 1.5px, rgba(255,160,0,0.15) 3px, transparent 4px)',
'radial-gradient(circle, rgba(255,200,30,0.45) 1px, rgba(255,140,0,0.12) 2.5px, transparent 3.5px)',
'radial-gradient(circle, rgba(255,240,100,0.35) 1px, transparent 2px)',
'radial-gradient(circle, rgba(255,220,50,0.7) 1.5px, rgba(255,160,0,0.18) 3px, transparent 4px)',
'radial-gradient(circle, rgba(255,200,30,0.55) 1px, rgba(255,140,0,0.14) 2.5px, transparent 3.5px)',
'radial-gradient(circle, rgba(255,240,100,0.4) 1px, transparent 2px)',
].join(','),
backgroundSize: '200px 200px, 280px 280px, 160px 160px',
backgroundPosition: '0 0, 120px 80px, 60px 140px',
animation: `${animFirefliesKeyframe} 15s linear infinite`,
animation: `${animFirefliesKeyframe} 30s linear infinite, ${animFirefliesGlowKeyframe} 2.3s ease-in-out infinite, ${animFirefliesBlinkKeyframe} 1.7s ease-in-out infinite`,
},
};
@@ -423,12 +427,12 @@ const LIGHT: Record<ChatBackground, CSSProperties> = {
'anim-rain': {
backgroundColor: '#f0fff4',
backgroundImage: [
'repeating-linear-gradient(180deg, rgba(0,160,80,0.14) 0px, rgba(0,160,80,0.14) 1px, transparent 1px, transparent 20px)',
'repeating-linear-gradient(180deg, rgba(0,160,80,0.16) 0px, rgba(0,160,80,0.16) 1px, transparent 1px, transparent 20px)',
'repeating-linear-gradient(180deg, rgba(0,160,80,0.07) 0px, rgba(0,160,80,0.07) 1px, transparent 1px, transparent 8px)',
].join(','),
backgroundSize: '40px 200px, 12px 200px',
backgroundPosition: '0 0, 0 0',
animation: `${animRainKeyframe} 8s linear infinite`,
animation: `${animRainKeyframe} 8s linear infinite, ${animRainGlowKeyframe} 2.1s ease-in-out infinite`,
},
'anim-stars': {
@@ -440,7 +444,7 @@ const LIGHT: Record<ChatBackground, CSSProperties> = {
].join(','),
backgroundSize: '130px 130px, 190px 190px, 260px 260px',
backgroundPosition: '0 0, 65px 32px, 32px 97px',
animation: `${animStarsDriftKeyframe} 25s linear infinite`,
animation: `${animStarsDriftKeyframe} 30s linear infinite`,
},
'anim-pulse': {
@@ -452,32 +456,32 @@ const LIGHT: Record<ChatBackground, CSSProperties> = {
'linear-gradient(90deg, rgba(0,98,184,0.06) 1px, transparent 1px)',
].join(','),
backgroundSize: '60px 60px, 60px 60px, 12px 12px, 12px 12px',
animation: `${animGridPulseKeyframe} 4s ease-in-out infinite`,
animation: `${animGridPulseKeyframe} 4s ease-in-out infinite, ${animGridBrightnessKeyframe} 3.3s ease-in-out infinite`,
},
'anim-aurora': {
backgroundColor: '#f0f8f4',
backgroundImage: [
'radial-gradient(ellipse at 20% 30%, rgba(0,160,80,0.12) 0%, transparent 55%)',
'radial-gradient(ellipse at 80% 70%, rgba(0,80,200,0.12) 0%, transparent 55%)',
'radial-gradient(ellipse at 50% 10%, rgba(140,60,220,0.09) 0%, transparent 50%)',
'radial-gradient(ellipse at 60% 90%, rgba(0,160,200,0.09) 0%, transparent 50%)',
'radial-gradient(ellipse 80% 60% at 20% 30%, rgba(0,160,80,0.13) 0%, transparent 70%)',
'radial-gradient(ellipse 70% 50% at 80% 70%, rgba(0,80,200,0.13) 0%, transparent 70%)',
'radial-gradient(ellipse 90% 70% at 50% 10%, rgba(140,60,220,0.10) 0%, transparent 65%)',
'radial-gradient(ellipse 75% 55% at 60% 90%, rgba(0,160,200,0.10) 0%, transparent 65%)',
].join(','),
backgroundSize: '200% 200%',
backgroundPosition: '0% 0%',
animation: `${animAuroraKeyframe} 20s ease-in-out infinite`,
backgroundSize: '200% 200%, 250% 250%, 300% 300%, 220% 220%',
backgroundPosition: '0% 0%, 100% 0%, 50% 100%, 0% 50%',
animation: `${animAuroraKeyframe} 28s ease-in-out infinite`,
},
'anim-fireflies': {
backgroundColor: '#fffdf0',
backgroundImage: [
'radial-gradient(circle, rgba(180,120,0,0.55) 1.5px, rgba(160,90,0,0.15) 3px, transparent 4px)',
'radial-gradient(circle, rgba(160,100,0,0.45) 1px, rgba(140,80,0,0.12) 2.5px, transparent 3.5px)',
'radial-gradient(circle, rgba(200,140,0,0.35) 1px, transparent 2px)',
'radial-gradient(circle, rgba(180,120,0,0.70) 1.5px, rgba(160,90,0,0.18) 3px, transparent 4px)',
'radial-gradient(circle, rgba(160,100,0,0.55) 1px, rgba(140,80,0,0.14) 2.5px, transparent 3.5px)',
'radial-gradient(circle, rgba(200,140,0,0.40) 1px, transparent 2px)',
].join(','),
backgroundSize: '200px 200px, 280px 280px, 160px 160px',
backgroundPosition: '0 0, 120px 80px, 60px 140px',
animation: `${animFirefliesKeyframe} 15s linear infinite`,
animation: `${animFirefliesKeyframe} 30s linear infinite, ${animFirefliesGlowKeyframe} 2.3s ease-in-out infinite, ${animFirefliesBlinkKeyframe} 1.7s ease-in-out infinite`,
},
};