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smart-city-digital-twin-mar…/smart-app-city/frontend/node_modules/parse-png/readme.md
Eric FELIXINE e30ae8ed09 feat(smart-app): implement complete mobile app MVP
- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image
2026-06-01 18:00:35 -04:00

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Markdown

# parse-png [![Build Status](https://travis-ci.org/kevva/parse-png.svg?branch=master)](https://travis-ci.org/kevva/parse-png)
> Parse a PNG
## Install
```
$ npm install parse-png
```
## Usage
```js
const fs = require('fs');
const parsePng = require('parse-png');
(async () => {
const png = await parsePng(fs.readFileSync('unicorn.png'));
console.log(png);
/*
{
width: 200,
height: 133,
depth: 8,
interlace: false,
palette: false,
color: true,
alpha: false,
bpp: 3,
colorType: 2,
data: <Buffer 29 48 4d ...>,
}
*/
png.adjustGamma();
png.pack().pipe(fs.createWriteStream('unicorn-adjusted.png'));
})();
```
## API
### parsePng(buffer, options?)
Returns a `Promise<Object>` with a PNG instance. See the [pngjs documentation](https://github.com/lukeapage/pngjs#async-api) for more information.
#### buffer
Type: `Buffer`
A PNG image buffer.
#### options
Type: `Object`
See the [pngjs options](https://github.com/lukeapage/pngjs#options).