# Upstream Bugfixes & Enhancements Implementation Plan > **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking. **Goal:** Apply 8 validated fixes/enhancements from upstream issues and PRs to the local fork. **Architecture:** All changes are edits to skill documentation files (`SKILL.md`, `html-template.md`, `viewport-base.css`) and `README.md`. No new files needed. Changes are independent and can be committed individually. The files under `plugins/frontend-slides/skills/frontend-slides/` are the canonical installed copies (symlinks were replaced with real files); always edit those paths. **Tech Stack:** Markdown, CSS, JavaScript (inline in `html-template.md` code blocks) --- ## File Map | File | Changes | |------|---------| | `plugins/frontend-slides/skills/frontend-slides/SKILL.md` | Task 1 (frontmatter), Task 8 (diagram detection) | | `plugins/frontend-slides/skills/frontend-slides/viewport-base.css` | Task 2 (overflow), Task 3 (4K breakpoint) | | `plugins/frontend-slides/skills/frontend-slides/html-template.md` | Task 4 (async fonts), Task 5 (bullet CSS), Task 6 (inline edit), Task 7 (fullscreen), Task 9 (diagram CSS) | | `README.md` | Task 0 (typo) | --- ## Task 0: Fix README Typo — "Soft Pastel" → "Split Pastel" **Files:** - Modify: `README.md` - [ ] **Step 1: Grep to confirm the typo location** Run: `grep -n "Soft Pastel" /Users/jake.li/Documents/github/frontend-slides/README.md` Expected: at least one line with "Soft Pastel" - [ ] **Step 2: Replace the typo** Replace every occurrence of "Soft Pastel" with "Split Pastel" in `README.md`. - [ ] **Step 3: Verify** Run: `grep -n "Soft Pastel\|Split Pastel" /Users/jake.li/Documents/github/frontend-slides/README.md` Expected: zero lines with "Soft Pastel", one or more with "Split Pastel" - [ ] **Step 4: Commit** ```bash git -C /Users/jake.li/Documents/github/frontend-slides add README.md git -C /Users/jake.li/Documents/github/frontend-slides commit -m "fix: correct theme name Soft Pastel → Split Pastel (issue #17)" ``` --- ## Task 1: Fix SKILL.md Frontmatter — Add `allowed-tools` **Context (PR #37):** Newer Claude Code versions require `AskUserQuestion` to be explicitly listed in `allowed-tools` or it falls back to plain text questions. **Files:** - Modify: `plugins/frontend-slides/skills/frontend-slides/SKILL.md` (lines 1–4) - [ ] **Step 1: View current frontmatter** Read lines 1–5 of `plugins/frontend-slides/skills/frontend-slides/SKILL.md`. Expected current content: ```yaml --- name: frontend-slides description: Create stunning, animation-rich HTML presentations... --- ``` - [ ] **Step 2: Add `allowed-tools` field** Replace the frontmatter block with: ```yaml --- name: frontend-slides description: Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices. allowed-tools: Read, Write, Edit, Bash, AskUserQuestion --- ``` - [ ] **Step 3: Verify** Run: `head -6 /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/SKILL.md` Expected: `allowed-tools: Read, Write, Edit, Bash, AskUserQuestion` appears on line 4. - [ ] **Step 4: Commit** ```bash git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/SKILL.md git -C /Users/jake.li/Documents/github/frontend-slides commit -m "fix: add allowed-tools frontmatter so AskUserQuestion works in newer Claude Code (PR #37)" ``` --- ## Task 2: Fix `viewport-base.css` — `overflow-x` → `overflow` **Context (Issue #34):** `overflow-x: hidden` on `html, body` still allows a vertical scrollbar to appear on some browsers during presentations, looking unprofessional when screen-sharing. **Files:** - Modify: `plugins/frontend-slides/skills/frontend-slides/viewport-base.css` (line 9) - [ ] **Step 1: Confirm current line** Run: `grep -n "overflow" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/viewport-base.css` Expected: `overflow-x: hidden;` on the `html, body` block (around line 9). - [ ] **Step 2: Apply fix** In `viewport-base.css`, find: ```css html, body { height: 100%; overflow-x: hidden; } ``` Replace with: ```css html, body { height: 100%; overflow: hidden; } ``` - [ ] **Step 3: Verify** Run: `grep -n "overflow" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/viewport-base.css | head -5` Expected: `overflow: hidden;` (not `overflow-x`) in the `html, body` block. - [ ] **Step 4: Commit** ```bash git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/viewport-base.css git -C /Users/jake.li/Documents/github/frontend-slides commit -m "fix: hide vertical scrollbar with overflow:hidden on html,body (issue #34)" ``` --- ## Task 3: Add 4K / Projector Breakpoint to `viewport-base.css` **Context (PR #56):** Screens ≥1600px (projectors, 4K monitors) hit the `clamp()` max caps too early. Add a breakpoint that raises the caps so text scales up further. **Files:** - Modify: `plugins/frontend-slides/skills/frontend-slides/viewport-base.css` (append after last `@media` block) - [ ] **Step 1: Confirm end of file** Run: `tail -15 /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/viewport-base.css` Expected: ends with the `prefers-reduced-motion` block. - [ ] **Step 2: Append 4K breakpoint** Append to the end of `viewport-base.css`: ```css /* Large viewports (≥ 1600px — projectors, 4K displays) */ @media (min-width: 1600px) { :root { --title-size: clamp(1.5rem, 5vw, 6rem); --h2-size: clamp(1.25rem, 3.5vw, 3.5rem); --h3-size: clamp(1rem, 2.5vw, 2.5rem); --body-size: clamp(0.75rem, 1.5vw, 1.5rem); --small-size: clamp(0.65rem, 1vw, 1.125rem); } } ``` - [ ] **Step 3: Verify** Run: `grep -A 8 "1600px" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/viewport-base.css` Expected: the new block appears with correct property values. - [ ] **Step 4: Commit** ```bash git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/viewport-base.css git -C /Users/jake.li/Documents/github/frontend-slides commit -m "feat: add projector/4K breakpoint (>=1600px) for larger type scaling (PR #56)" ``` --- ## Task 4: Async Font Loading in `html-template.md` **Context (PR #58):** Synchronous font `` tags block page rendering. The `media="print" onload` trick loads fonts asynchronously without a custom JS loader. **Files:** - Modify: `plugins/frontend-slides/skills/frontend-slides/html-template.md` (Base HTML Structure section, font link lines) - [ ] **Step 1: Find current font link pattern** Run: `grep -n "fontshare\|googleapis\|font" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -10` Expected: a line like `` - [ ] **Step 2: Replace with async pattern** Find the comment and font `` block in the Base HTML Structure section: ```html ``` Replace with: ```html ``` - [ ] **Step 3: Verify** Run: `grep -n "media=\"print\"\|preconnect\|noscript" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -10` Expected: lines with `media="print"`, `preconnect`, and `noscript` all present. - [ ] **Step 4: Commit** ```bash git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/html-template.md git -C /Users/jake.li/Documents/github/frontend-slides commit -m "feat: async non-blocking font loading with media=print onload trick (PR #58)" ``` --- ## Task 5: Fix Bullet Hanging-Indent CSS in `html-template.md` **Context (Issue #62):** When `
` element into its own anonymous box and row. Result: every text node and `` chip in `foo bar baz ` renders as a separate line.
**Fix:** Switch from grid to absolute-positioned `::before` marker, which lets inline content flow naturally.
**Files:**
- Modify: `plugins/frontend-slides/skills/frontend-slides/html-template.md` (bullets section)
- [ ] **Step 1: Locate the bullet CSS pattern**
Run: `grep -n "bullets\|display: grid\|grid-template-columns" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -15`
Note: this pattern may not appear explicitly in the template (it manifests in generated output). Check the Bullets / List Patterns section of `html-template.md`.
- [ ] **Step 2: Read the Bullets section**
Run: `grep -n "bullet\|Bullet\|\.bullets" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md`
- [ ] **Step 3: Add or update the bullets CSS guidance**
Find the section that describes bullet/list CSS in `html-template.md`. Add the following canonical pattern (create the section if it doesn't exist, or update the existing pattern):
After the "Required JavaScript Features" section, find or create a "## Bullet / List Patterns" section and add:
```markdown
## Bullet / List Patterns
**CRITICAL: Never use `display: grid` on `` elements that contain inline `` chips.**
CSS Grid wraps every text node and inline element into an anonymous block box. A single `foo bar baz ` produces three separate rows — content overflows and each fragment renders on its own line.
Use this hanging-indent pattern instead (absolute `::before` marker):
```css
.bullets {
list-style: none;
padding: 0;
margin: 0;
display: flex;
flex-direction: column;
gap: clamp(0.5rem, 1vh, 1rem);
}
.bullets li {
position: relative;
padding-left: clamp(1.4rem, 2.5vw, 2rem);
font-size: var(--body-size);
line-height: 1.5;
}
.bullets li::before {
content: "";
position: absolute;
left: 0;
top: 0.65em;
width: clamp(0.75rem, 1.5vw, 1.2rem);
height: 2px;
background: var(--accent);
}
```
This renders `text chip more text ` correctly as a single inline-flowing line regardless of how many `` elements appear.
```
- [ ] **Step 4: Verify**
Run: `grep -n "display: grid\|hanging-indent\|Never use.*grid.*li\|position: absolute" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -10`
Expected: the "Never use `display: grid`" warning and `position: absolute` on `::before` appear.
- [ ] **Step 5: Commit**
```bash
git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/html-template.md
git -C /Users/jake.li/Documents/github/frontend-slides commit -m "fix: replace display:grid bullet pattern with absolute ::before to fix inline code rendering (issue #62)"
```
---
## Task 6: Fix Inline Edit — Enter Key & Paste Font Corruption
**Context (Issue #49):** In inline edit mode:
1. Chrome inserts a `` on Enter inside `contenteditable`, breaking font inheritance in ``/`
` elements.
2. Pasting from clipboard brings foreign inline styles (`font-family`, `color`, `background-color`) that override theme tokens.
Both bugs only appear after Ctrl+S export → reload (not during editing), making them easy to miss.
**Fix:** Three additions to the inline edit JS:
1. `defaultParagraphSeparator` → `'br'`
2. Intercept `keydown` Enter → `insertLineBreak`
3. Intercept `paste` → strip to plain text
**Files:**
- Modify: `plugins/frontend-slides/skills/frontend-slides/html-template.md` (Inline Editing Implementation section)
- [ ] **Step 1: Find the enterEditMode / editor toggle section**
Run: `grep -n "toggleEditMode\|enterEditMode\|isActive\|contenteditable" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -15`
- [ ] **Step 2: Locate where contenteditable is set on elements**
Read the lines around `contenteditable` in `html-template.md` to find where edit mode is entered.
- [ ] **Step 3: Add Enter/paste fix to the Inline Editing Implementation section**
In the "Inline Editing Implementation (Opt-In Only)" section of `html-template.md`, after the existing `exportFile()` code block, add a new subsection:
````markdown
### Inline Edit — Enter Key & Paste Fix
**Why this is needed:** Chrome inserts `
` on Enter inside `contenteditable` (Firefox uses `
`, Safari varies). A `` inside `` or `
` is invalid HTML — browsers "fix" it when serializing `outerHTML` for Ctrl+S export, producing a structurally different file where the new line renders in the wrong font. Pasting from external sources brings inline `font-family`/`color`/`background-color` that override CSS theme tokens.
Add these three items when entering edit mode (call from inside `toggleEditMode()` or `enterEditMode()`):
```javascript
enableEditMode(editableElements) {
// 1. Set paragraph separator to
(prevents Chrome
-on-Enter bug)
document.execCommand('defaultParagraphSeparator', false, 'br');
editableElements.forEach(el => {
el.setAttribute('contenteditable', 'true');
// 2. Intercept Enter: insert
instead of
el.addEventListener('keydown', (e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
// execCommand is deprecated but has no clean replacement as of 2026
document.execCommand('insertLineBreak');
}
});
// 3. Intercept paste: strip to plain text only
el.addEventListener('paste', (e) => {
e.preventDefault();
const text = e.clipboardData.getData('text/plain');
document.execCommand('insertText', false, text);
});
});
}
```
**localStorage version bump:** If previously-saved presentations in localStorage contain `` garbage from the old behavior, bump the storage key version so they don't load corrupted content:
```javascript
const STORAGE_KEY = 'presentation-edits-v2'; // was v1
```
````
- [ ] **Step 4: Verify**
Run: `grep -n "insertLineBreak\|defaultParagraphSeparator\|text/plain\|STORAGE_KEY" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md`
Expected: all four strings appear.
- [ ] **Step 5: Commit**
```bash
git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/html-template.md
git -C /Users/jake.li/Documents/github/frontend-slides commit -m "fix: prevent font corruption on Enter/paste in inline edit mode (issue #49)"
```
---
## Task 7: Add Fullscreen Button to `html-template.md`
**Context (Issue #34):** No fullscreen support. Presenters screen-sharing want a single key/button to hide browser chrome. `F` key + a fixed corner button covers both keyboard and pointer users.
**Files:**
- Modify: `plugins/frontend-slides/skills/frontend-slides/html-template.md` (Required JavaScript Features section)
- [ ] **Step 1: Locate the SlidePresentation / JS features section**
Run: `grep -n "SlidePresentation\|Required JavaScript" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md | head -5`
- [ ] **Step 2: Add fullscreen to the Required JavaScript Features list**
Find the list item:
```markdown
3. **Optional Enhancements** (match to chosen style):
```
Before it, add as item 3 (renumber Optional Enhancements to 4 and Inline Editing to 5):
```markdown
3. **FullscreenController** — Standard in every presentation:
- Fixed `⛶` button, bottom-right corner
- `F` key shortcut (skip when in `contenteditable`)
- Button icon toggles to `✕` when fullscreen is active
- `document.fullscreenElement` check for toggle
```
- [ ] **Step 3: Add FullscreenController HTML/CSS/JS block**
After the Required JavaScript Features list, add a new subsection:
````markdown
## Fullscreen Controller (Required in Every Presentation)
Add this HTML, CSS, and JS to every generated presentation — it is not optional.
HTML (inside ``, before slides):
```html
```
CSS:
```css
.fullscreen-btn {
position: fixed;
bottom: 1rem;
right: 1rem;
z-index: 1000;
background: rgba(255, 255, 255, 0.06);
border: 1px solid rgba(255, 255, 255, 0.2);
border-radius: 8px;
color: rgba(255, 255, 255, 0.6);
width: 36px;
height: 36px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
font-size: 14px;
transition: background 0.2s, color 0.2s;
}
.fullscreen-btn:hover {
background: rgba(255, 255, 255, 0.12);
color: #fff;
}
```
JS (instantiate alongside `new SlidePresentation()`):
```javascript
class FullscreenController {
constructor() {
this.btn = document.getElementById('fullscreenBtn');
this.btn.addEventListener('click', () => this.toggle());
document.addEventListener('keydown', (e) => {
if ((e.key === 'f' || e.key === 'F') && !e.target.getAttribute('contenteditable')) {
this.toggle();
}
});
document.addEventListener('fullscreenchange', () => this.updateIcon());
}
toggle() {
if (!document.fullscreenElement) {
document.documentElement.requestFullscreen().catch(() => {});
} else {
document.exitFullscreen();
}
}
updateIcon() {
this.btn.textContent = document.fullscreenElement ? '✕' : '⛶';
}
}
new SlidePresentation();
new FullscreenController();
```
````
- [ ] **Step 4: Verify**
Run: `grep -n "FullscreenController\|fullscreenBtn\|requestFullscreen\|fullscreenchange" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md`
Expected: all four strings appear.
- [ ] **Step 5: Commit**
```bash
git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/html-template.md
git -C /Users/jake.li/Documents/github/frontend-slides commit -m "feat: add fullscreen button and F-key shortcut to every presentation (issue #34)"
```
---
## Task 8: Add Diagram Layout Detection to `SKILL.md`
**Context (PR #61):** When users provide images with relationship diagrams (org charts, pipelines, cycle diagrams), the skill currently has no pattern for rendering them faithfully as HTML — it falls back to generic slides that lose spatial semantics.
**Files:**
- Modify: `plugins/frontend-slides/skills/frontend-slides/SKILL.md` (Phase 1 section)
- [ ] **Step 1: Find Phase 1 image evaluation section**
Run: `grep -n "Image Evaluation\|Step 1.2\|Scan.*image\|USABLE" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/SKILL.md | head -10`
- [ ] **Step 2: Add diagram detection step after Step 1.2**
Find the end of the "Step 1.2: Image Evaluation" section (just before "---" or "Phase 2"). After the last line of Step 1.2, add:
````markdown
### Step 1.3: Diagram Detection
After evaluating each image, identify any **relationship diagrams** — images with spatial structure that encodes meaning (arrows, nodes, flows, hierarchies). These require dedicated CSS layouts in Phase 3 to preserve that structure.
Detect and label each diagram image as one of:
| Type | Visual cues | HTML layout |
|------|-------------|-------------|
| `cycle-diagram` | Circular arrows, flywheel, recurring loop | Circle of nodes with arc connectors |
| `pipeline-diagram` | Left→right flow, input/process/output boxes | Horizontal flex with arrow separators |
| `feedback-diagram` | Main flow + return arrow, system loop | Forward path + curved return path |
| `hierarchy-diagram` | Org chart, tree, parent→children | CSS grid tree with connecting lines |
| `hub-diagram` | Central node + spokes to outer nodes | CSS radial positioning |
**If any diagram is detected:** note the type for Phase 3. The corresponding CSS layout patterns are documented in [html-template.md](html-template.md) under "Diagram Layout Patterns".
**If no diagrams detected:** skip to Phase 2 as normal.
````
- [ ] **Step 3: Verify**
Run: `grep -n "cycle-diagram\|pipeline-diagram\|hub-diagram\|Diagram Detection" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/SKILL.md`
Expected: all four strings appear.
- [ ] **Step 4: Commit**
```bash
git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/SKILL.md
git -C /Users/jake.li/Documents/github/frontend-slides commit -m "feat: add diagram layout detection in Phase 1 (PR #61)"
```
---
## Task 9: Add Diagram CSS Layout Patterns to `html-template.md`
**Context (PR #61 continued):** SKILL.md now references these patterns. Add the CSS implementation to `html-template.md`.
**Files:**
- Modify: `plugins/frontend-slides/skills/frontend-slides/html-template.md` (append new section)
- [ ] **Step 1: Confirm end of file**
Run: `tail -5 /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md`
- [ ] **Step 2: Append diagram layout patterns section**
Append to `html-template.md`:
````markdown
## Diagram Layout Patterns
Use these zero-dependency CSS layouts when a slide needs to render a relationship diagram. All patterns use only CSS (no JS, no canvas, no SVG) and respect `clamp()` sizing and `overflow: hidden` constraints.
### cycle-diagram — Circular / Flywheel Processes
```html
Step 1
Step 2
Step 3
Step 4
```
```css
.cycle-diagram {
position: relative;
width: min(40vh, 400px);
height: min(40vh, 400px);
margin: auto;
}
.cycle-node {
position: absolute;
width: clamp(4rem, 8vw, 7rem);
height: clamp(4rem, 8vw, 7rem);
border-radius: 50%;
background: var(--accent);
color: var(--bg-primary);
display: flex;
align-items: center;
justify-content: center;
font-size: var(--small-size);
font-weight: 700;
text-align: center;
}
/* Position nodes at 12, 3, 6, 9 o'clock */
.cycle-node:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%); }
.cycle-node:nth-child(2) { top: 50%; right: 0; transform: translateY(-50%); }
.cycle-node:nth-child(3) { bottom: 0; left: 50%; transform: translateX(-50%); }
.cycle-node:nth-child(4) { top: 50%; left: 0; transform: translateY(-50%); }
```
### pipeline-diagram — Input → Process → Output
```html
Input
→
Process
→
Output
```
```css
.pipeline-diagram {
display: flex;
align-items: center;
justify-content: center;
gap: clamp(0.5rem, 1.5vw, 1rem);
flex-wrap: nowrap;
max-width: 90%;
margin: auto;
}
.pipeline-node {
padding: clamp(0.5rem, 1.5vw, 1rem) clamp(1rem, 2.5vw, 2rem);
background: var(--accent);
color: var(--bg-primary);
border-radius: 8px;
font-size: var(--body-size);
font-weight: 700;
white-space: nowrap;
}
.pipeline-arrow {
font-size: var(--h3-size);
color: var(--text-secondary);
flex-shrink: 0;
}
```
### hierarchy-diagram — Org Chart / Tree
```html
CEO
VP Eng
VP Design
VP Sales
```
```css
.hierarchy-diagram {
display: flex;
flex-direction: column;
align-items: center;
gap: clamp(1rem, 2vh, 2rem);
}
.h-root {
padding: clamp(0.5rem, 1.5vw, 1rem) clamp(1.5rem, 3vw, 3rem);
background: var(--accent);
color: var(--bg-primary);
border-radius: 8px;
font-weight: 700;
font-size: var(--body-size);
}
.h-children {
display: flex;
gap: clamp(0.75rem, 2vw, 2rem);
position: relative;
}
.h-children::before {
content: "";
position: absolute;
top: calc(-1 * clamp(0.5rem, 1vh, 1rem));
left: 50%;
transform: translateX(-50%);
width: 1px;
height: clamp(0.5rem, 1vh, 1rem);
background: var(--text-secondary);
}
.h-node {
padding: clamp(0.4rem, 1vw, 0.75rem) clamp(1rem, 2vw, 1.5rem);
border: 1px solid var(--text-secondary);
border-radius: 8px;
font-size: var(--small-size);
color: var(--text-primary);
}
```
### hub-diagram — Hub and Spoke
```html
Core
API
DB
Cache
Auth
```
```css
.hub-diagram {
position: relative;
width: min(38vh, 380px);
height: min(38vh, 380px);
margin: auto;
}
.hub-center {
position: absolute;
top: 50%; left: 50%;
transform: translate(-50%, -50%);
width: clamp(4rem, 8vw, 7rem);
height: clamp(4rem, 8vw, 7rem);
border-radius: 50%;
background: var(--accent);
color: var(--bg-primary);
display: flex;
align-items: center;
justify-content: center;
font-weight: 700;
font-size: var(--body-size);
z-index: 1;
}
/* Position spokes at equal angles using CSS custom properties */
.hub-spoke {
position: absolute;
width: clamp(3rem, 6vw, 5rem);
height: clamp(3rem, 6vw, 5rem);
border-radius: 50%;
border: 1px solid var(--accent);
display: flex;
align-items: center;
justify-content: center;
font-size: var(--small-size);
top: 50%; left: 50%;
}
.hub-spoke:nth-child(2) { transform: translate(-50%, -50%) translate(0, -140%); }
.hub-spoke:nth-child(3) { transform: translate(-50%, -50%) translate(140%, 0); }
.hub-spoke:nth-child(4) { transform: translate(-50%, -50%) translate(0, 140%); }
.hub-spoke:nth-child(5) { transform: translate(-50%, -50%) translate(-140%, 0); }
```
````
- [ ] **Step 3: Verify**
Run: `grep -n "cycle-diagram\|pipeline-diagram\|hierarchy-diagram\|hub-diagram" /Users/jake.li/Documents/github/frontend-slides/plugins/frontend-slides/skills/frontend-slides/html-template.md`
Expected: all four diagram type names appear.
- [ ] **Step 4: Commit**
```bash
git -C /Users/jake.li/Documents/github/frontend-slides add plugins/frontend-slides/skills/frontend-slides/html-template.md
git -C /Users/jake.li/Documents/github/frontend-slides commit -m "feat: add diagram CSS layout patterns (cycle/pipeline/hierarchy/hub) (PR #61)"
```
---
## Task 10: Reinstall Plugin & Verify Skill Loads
After all commits, reinstall the plugin from the local fork so the updated files are reflected in the cache.
- [ ] **Step 1: Reinstall plugin**
```bash
claude plugins uninstall frontend-slides@frontend-slides && claude plugins install frontend-slides@frontend-slides
```
Expected: `Successfully installed plugin: frontend-slides@frontend-slides (scope: user)`
- [ ] **Step 2: Confirm skill files in cache**
```bash
find ~/.claude/plugins/cache/frontend-slides/frontend-slides/ -name "*.md" -o -name "*.css" | grep -v ".in_use"
```
Expected: SKILL.md, html-template.md, STYLE_PRESETS.md, animation-patterns.md, viewport-base.css all present.
- [ ] **Step 3: Run `/reload-plugins` in Claude Code**
Reload plugins in the current session. The `frontend-slides:frontend-slides` skill should appear in the skill list.