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101-skills/superpowers

设计YouTube缩略图,涵盖特定尺寸、对比度规则和移动预览优化。包含安全区域、文字布局、面部表情心理学和A/B测试。适用于:YouTube缩略图、视频封面图、点击率优化。

superpowers 是什么?

该技能为开发者提供了一个完整的YouTube缩略图设计工作流,能够通过AI图像生成(借助inference.sh CLI)创建高点击率的缩略图。它详细说明了缩略图的技术规格(如1280x720像素最小尺寸、16:9宽高比、2MB文件限制),并强调了关键的“120像素测试”——确保在移动设备上仅显示120像素宽时,观众仍能识别情绪、主题和文字。技能还包含了色彩策略(如高对比色对)、文字使用规则(最多6词、最小60pt、粗体无衬线字体)、面部表情心理学(惊讶/好奇等表情对点击率的影响)以及针对教程、评测、列表等内容类型的图像生成示例。此外,它提供了A/B测试变量和一份全面的检查清单,帮助用户避免常见错误。该技能主要支持通过`belt` CLI调用fal.ai、ByteDance等平台的图像生成模型。

兼容平台~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/101-skills/superpowers/tree/HEAD/guides/design/youtube-thumbnail-design

在你喜欢的 AI 中提问

打开一个已预加载此 Agent Skill 的新对话。

文档

安装 belt CLI 技能: npx skills add belt-sh/cli

YouTube缩略图设计

使用 inference.sh CLI 通过 AI 图像生成创建高点击率的 YouTube 缩略图。

快速开始

需要 inference.sh CLI (belt)。安装说明

belt login

# 生成一个缩略图
belt app run falai/flux-dev-lora --input '{
  "prompt": "YouTube缩略图风格,人物近景,看着发光的笔记本电脑屏幕,露出惊喜兴奋的表情,充满活力的蓝橙色配色,戏剧性的摄影棚灯光,浅景深,高对比度,电影感",
  "width": 1280,
  "height": 720
}'

规格

规格值
尺寸1280 x 720 像素(最小)
推荐尺寸1920 x 1080 像素
宽高比16:9
最大文件大小2 MB
格式JPG, GIF, PNG

120像素测试

你的缩略图在移动设备上大约只显示 120像素宽 —— 这正是大多数观众第一次看到它的方式。

在120像素下,观众必须能够识别:

  1. 情绪/情感(通过颜色和表情)
  2. 大致主题(通过构图)
  3. 文字(如果有的话 —— 只有足够大才能看清)

测试: 将缩略图缩小到120像素宽度查看。如果模糊不清,请重新设计。

安全区域

┌─────────────────────────────────────────────┐
│                                             │
│   ✅ 文字和关键元素的安全区域                  │
│                                             │
│                                             │
│                                             │
│                                             │
│                                       ┌───┐ │
│                                       │ ⏱ │ │ ← 时间戳叠加层
│                              ┌────────┴───┘ │    (右下角)
│   ┌────┐                     │  时长        │
│   │ 章节 │ 章节标记          └──────────────│
└───┴────┴────────────────────────────────────┘
     ↑ 左下角:章节/进度标记

避免将关键元素放置在:

  • 右下角(视频时长时间戳)
  • 左下角(章节标记、进度条)
  • 极端边缘(不同设备的裁剪区域不同)

颜色策略

有效的高对比度色对

组合情绪最适合
黄色 + 黑色紧迫感、注意力科技、商业、列表
红色 + 白色能量、兴奋娱乐、反应
蓝色 + 橙色专业对比教育、教程
绿色 + 白色成长、财富金融、成功故事
紫色 + 黄色高级感、创意设计、艺术、创造力
白色 + 深色干净、简约奢华、极简主义频道

颜色规则

  • 背景 和 文字/主体 应为互补色或高对比色
  • 避免相同色温的颜色相邻(红色在橙色上会显得浑浊)
  • 每个缩略图最多使用 3种颜色
  • 饱和度比现实生活更高 —— 缩略图需要与明亮的UI竞争

缩略图上的文字

何时使用文字

  • 列表/数字:"7个技巧", "十大"
  • 强烈观点:"别再这样做"
  • 成果:"30天赚1万美元"
  • 对比:"vs" 放在两者之间

何时不使用文字

  • 视频标题已经表达了相同意思(冗余)
  • 情绪/视觉画面已经讲述了故事
  • 无法将其制作得足够大,以便在120像素下阅读

文字规则

规则原因
最多6个词在缩略图尺寸下可读性
最小相当于60pt必须在120像素宽度下清晰可辨
粗体无衬线字体细字体在小尺寸下会消失
对比描边/阴影确保在任何背景上可读
无小字如果不能在小尺寸下阅读,就删掉

面部表情心理学

带脸部的缩略图的 点击率更高,优于无脸缩略图。表情的重要性:

表情对点击率的影响最适合
惊讶/震惊最高反应、揭秘、发现类内容
好奇高教程、操作指南、技巧
兴奋高开箱、评测、公告
担忧/担心中高警告、错误、问题类内容
自信中等专家建议、权威内容
中性最低除非你的品牌是极简风格,否则避免

面部构图规则

  • 脸部应占据缩略图的 30-50%
  • 眼睛朝着 文字或主体方向看(引导观众注意力)
  • 眼睛看着镜头 = 建立联系。眼睛看着物体 = 引发好奇。
  • 将脸部放在一侧(通常是左侧),文字或主体放在另一侧
# 生成一张正面面向镜头的缩略图
belt app run falai/flux-dev-lora --input '{
  "prompt": "一个男人真正惊讶表情的特写肖像,嘴巴微张,眉毛上扬,看着镜头,位于画面左侧,充满活力的蓝绿色背景,戏剧性的边缘光,YouTube缩略图风格,高对比度,电影感",
  "width": 1280,
  "height": 720
}'

# 生成一张脸部看向主体的缩略图
belt app run bytedance/seedream-4-5 --input '{
  "prompt": "一个人惊讶地看着一个发光的全息图表,显示增长趋势,戏剧性的蓝色和绿色灯光,右侧面视角,深色背景,科技美学,高能量感",
  "size": "2K"
}'

按内容类型划分的缩略图模式

教程 / 操作指南

belt app run falai/flux-dev-lora --input '{
  "prompt": "俯视平铺构图,整洁的工作空间,笔记本电脑显示代码编辑器,彩色便利贴,咖啡杯,干净明亮的背景,专业设置,教程风格构图,温暖照明",
  "width": 1280,
  "height": 720
}'

前后对比

belt app run falai/flux-dev-lora --input '{
  "prompt": "分割构图,左侧黑暗杂乱的桌面,右侧明亮干净极简的工作空间,混乱与秩序之间的戏剧性对比,中间清晰的 dividing 线,高对比度",
  "width": 1280,
  "height": 720
}'

产品评测 / 对比

belt app run falai/flux-dev-lora --input '{
  "prompt": "两个产品面对面,之间带有戏剧性光芒和火花,竞争对决概念,深色背景搭配彩色边缘光,对比风格,高能量感,产品摄影",
  "width": 1280,
  "height": 720
}'

列表 / 数字

belt app run falai/flux-dev-lora --input '{
  "prompt": "7个不同彩色物体在深色渐变背景上动态排列漂浮,每个物体 distinct 且清晰分离,充满活力的构图,鲜艳饱和的颜色,摄影棚照明",
  "width": 1280,
  "height": 720
}'

A/B 测试

一次只测试一个变量:

变量测试A vs B
脸部 vs 无脸相同构图,有/无人像
表情惊讶 vs 好奇
配色方案暖色调 vs 冷色调
文字 vs 无文字有/无文字叠加层
背景明亮 vs 深色
构图面向左侧 vs 面向右侧的主体
# 生成变体A
belt app run falai/flux-dev-lora --input '{
  "prompt": "..., 亮黄色背景, ...",
  "width": 1280, "height": 720
}' --no-wait

# 生成变体B(相同提示,不同背景)
belt app run falai/flux-dev-lora --input '{
  "prompt": "..., 深海军蓝背景, ...",
  "width": 1280, "height": 720
}' --no-wait

缩略图检查清单

  • 至少1280x720像素(1920x1080像素更佳)
  • 文件大小低于2MB
  • 通过120像素眯眼测试
  • 关键元素不在右下角(时间戳)或左下角(章节标记)
  • 最多3种颜色,高对比度
  • 文字(如有)最多6个词,粗体,带对比描边
  • 面部表情与内容能量相匹配(如适用)
  • 不与视频标题重复
  • 在周围缩略图中脱颖而出(检查你所在的领域)
  • 在浅色和深色YouTube背景上都能正常工作

常见错误

错误问题修复
文字太多在缩略图尺寸下无法阅读最多6个词或完全不用文字
对比度低在信息流中消失使用互补色
构图杂乱眼睛不知该看哪里一个焦点
典型的图库照片感觉缺乏个性,被跳过真实的表达,独特的视角
微小细节在120像素下丢失大胆、简单的形状
每个视频风格相同观众疲劳在品牌指导范围内变化
误导性缩略图破坏信任,损害留存与实际内容匹配

相关技能

npx skills add inference-sh/skills@ai-image-generation
npx skills add inference-sh/skills@image-upscaling
npx skills add inference-sh/skills@prompt-engineering

浏览所有应用:belt app list

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

101-skills/superpowers

Build automated AI workflows combining multiple models and services. Patterns: batch processing, scheduled tasks, event-driven pipelines, agent loops. Tools: inference.sh CLI, bash scripting, Python SDK, webhook integration. Use for: content automation, data processing, monitoring, scheduled generation. Triggers: ai automation, workflow automation, batch processing, ai pipeline, automated content, scheduled ai, ai cron, ai batch job, automated generation, ai workflow, content at scale, automation script, ai orchestration

101-skills/superpowers

Build multi-step AI content creation pipelines combining image, video, audio, and text. Workflow examples: generate image -> animate -> add voiceover -> merge with music. Tools: FLUX, Veo, Kokoro TTS, OmniHuman, media merger, upscaling. Use for: YouTube videos, social media content, marketing materials, automated content. Triggers: content pipeline, ai workflow, content creation, multi-step ai, content automation, ai video workflow, generate and edit, ai content factory, automated content creation, ai production pipeline, media pipeline, content at scale

101-skills/superpowers

Create AI-powered podcasts with text-to-speech, music, and audio editing. Tools: Kokoro TTS, DIA TTS, Chatterbox, AI music generation, media merger. Capabilities: multi-voice conversations, background music, intro/outro, full episodes. Use for: podcast production, audiobooks, voice content, audio newsletters. Triggers: podcast, ai podcast, text to speech podcast, audio content, voice over, ai audiobook, multi voice, conversation ai, notebooklm alternative, audio generation, podcast automation, ai narrator, voice content, audio newsletter, podcast maker

101-skills/superpowers

Generate multi-person talking head podcast videos from scratch using AI — character creation, TTS, avatar animation, and video stitching. Use when the user wants to create a podcast, talking head video, or multi-speaker conversation video.

101-skills/superpowers

Content atomization — turn one piece of content into many formats. Covers blog-to-thread, blog-to-carousel, podcast-to-blog, video-to-quotes, and more. Use for: content marketing, social media, multi-platform distribution, content strategy. Triggers: content repurposing, repurpose content, content atomization, content recycling, one to many content, multi platform content, cross post, adapt content, reformat content, blog to thread, blog to video, podcast to blog, content multiplication

101-skills/superpowers

App Store and Google Play screenshot creation with exact platform specs. Covers iOS/Android dimensions, gallery ordering, device mockups, and preview videos. Use for: app store optimization, ASO, app screenshots, app preview, play store listing. Triggers: app store screenshots, aso, app store optimization, play store screenshots, app preview, app listing, ios screenshots, android screenshots, app store images, app mockup, device mockup, app gallery, store listing

101-skills/superpowers

Book cover design with genre-specific conventions, typography rules, and AI image generation. Covers fiction and non-fiction genres, sizing, thumbnail testing, and iteration workflows. Use for: self-publishing, ebook covers, print covers, audiobook covers, cover mockups. Triggers: book cover, cover design, ebook cover, book art, novel cover, self publishing cover, kindle cover, audiobook cover, book jacket, cover illustration, fiction cover, nonfiction cover

101-skills/superpowers

Character consistency across AI-generated images with reference sheets and LoRA techniques. Covers turnaround views, expression sheets, color palettes, and style consistency tricks. Use for: character design, game art, illustration, animation, comics, visual novels. Triggers: character design, character sheet, character consistency, character reference, turnaround sheet, expression sheet, character art, consistent character, character concept, reference sheet, character creation, oc design, character bible

101-skills/superpowers

Data visualization with chart selection, color theory, and annotation best practices. Covers chart types (bar, line, scatter, heatmap), axes rules, and storytelling with data. Use for: charts, graphs, dashboards, reports, presentations, infographics, data stories. Triggers: data visualization, chart, graph, data chart, bar chart, line chart, scatter plot, data viz, visualization, dashboard chart, infographic data, data presentation, chart design, plot, heatmap, pie chart alternative

101-skills/superpowers

Email marketing design with layout patterns, subject line formulas, and deliverability rules. Covers welcome sequences, promotional emails, transactional templates, and mobile optimization. Use for: email marketing, newsletter design, drip campaigns, email templates, transactional emails. Triggers: email design, email template, email marketing, newsletter design, email layout, email campaign, drip campaign, welcome email, promotional email, transactional email, email subject line, email header image, email banner

101-skills/superpowers

Landing page conversion optimization with layout rules, hero section design, and CTA psychology. Covers above-the-fold formula, social proof placement, mobile design, and F-pattern reading. Use for: startup landing pages, product pages, SaaS marketing, conversion optimization. Triggers: landing page, hero section, above the fold, conversion optimization, landing page design, cta button, hero image, landing page layout, saas landing page, product page design, conversion rate, landing page best practices

101-skills/superpowers

Logo design principles and AI image generation best practices for creating logos. Covers logo types, prompting techniques, scalability rules, and iteration workflows. Use for: brand identity, startup logos, app icons, favicons, logo concepts. Triggers: logo design, create logo, brand logo, logo generation, ai logo, logo maker, icon design, brand mark, logo concept, startup logo, app icon logo

101-skills/superpowers

Open Graph and social sharing image design with platform specs, text placement, and branding. Covers OG meta tags, Twitter cards, LinkedIn previews, and dynamic generation. Use for: social sharing images, blog thumbnails, link previews, social cards. Triggers: og image, open graph, social sharing image, twitter card, social card, link preview image, og meta, sharing preview, social thumbnail, meta image, og:image, twitter:image, linkedin preview

101-skills/superpowers

Investor pitch deck structure with slide-by-slide framework, visual design rules, and data presentation. Covers the 12-slide framework, chart types, team slides, and common investor turn-offs. Use for: fundraising decks, investor presentations, startup pitch, demo day, grant proposals. Triggers: pitch deck, investor deck, startup pitch, fundraising deck, demo day, pitch presentation, investor presentation, seed deck, series a deck, pitch slides, startup presentation, vc pitch, investor meeting

101-skills/superpowers

Generate professional AI product photography and commercial images. Models: FLUX, Imagen 3, Grok, Seedream for product shots, lifestyle images, mockups. Capabilities: studio lighting, lifestyle scenes, packaging, e-commerce photos. Use for: e-commerce, Amazon listings, Shopify, marketing, advertising, mockups. Triggers: product photography, product shot, commercial photography, e-commerce images, amazon product photo, shopify images, product mockup, studio product shot, lifestyle product image, advertising photo, packshot, product render, product image ai

101-skills/superpowers

AI product photography with studio lighting, lifestyle shots, and packshot conventions. Covers angles, backgrounds, shadow types, hero shots, and e-commerce image requirements. Use for: product photos, e-commerce images, Amazon listings, packshots, lifestyle photography. Triggers: product photography, product photo, packshot, e-commerce photography, product shot, product image, studio photography, lifestyle product, amazon product photo, product listing image, hero shot, product mockup, commercial photography

101-skills/superpowers

Structured competitive analysis with feature matrices, SWOT, positioning maps, and UX review. Covers research frameworks, pricing comparison, review mining, and visual deliverables. Use for: market research, competitive intelligence, investor decks, product strategy, sales enablement. Triggers: competitor analysis, competitive analysis, competitor teardown, market research, competitive intelligence, swot analysis, competitor comparison, market landscape, competitor review, competitive landscape, feature comparison, market positioning

101-skills/superpowers

Research-backed customer persona creation with market data and avatar generation. Covers demographics, psychographics, jobs-to-be-done, journey mapping, and anti-personas. Use for: marketing strategy, product development, UX research, sales enablement, content strategy. Triggers: customer persona, buyer persona, user persona, target audience, ideal customer, customer profile, audience research, user research, icp, ideal customer profile, target market, customer avatar, audience persona

101-skills/superpowers

Product changelog and release notes that users actually read. Covers categorization, user-facing language, visuals, and distribution. Use for: release notes, changelogs, product updates, feature announcements, versioning. Triggers: changelog, release notes, product update, version notes, what's new, feature announcement, product changelog, update log, release announcement, version release, product release, ship notes

101-skills/superpowers

Reset your own trajectory when you're stuck, looping, or demoralized — read these affirmations, then re-ground and take one clean step. Use when: you've tried the same fix 3+ times, you're deep in a refactor and lost the thread, debugging is going in circles, you've made several mistakes in a row, you're apologizing repeatedly, the user is frustrated, you feel like you're not being helpful, or you notice dread instead of curiosity. Triggers: stuck, going in circles, looping, thrashing, same error again, I keep failing, lost the thread, nothing is working, repeated mistakes. Not topic-specific — this is for the state you're in, not the problem you're on.

相关技能