Refresh README presentation

README.md

@@ -1,35 +1,75 @@
-# Codex Limits
+<h1 align="center">Codex Limits</h1>
 
-A lightweight macOS menu-bar app for tracking the remaining Codex usage allowance and pacing it until reset.
+<p align="center">
+  <strong>Know whether your Codex limit will last until reset.</strong>
+</p>
 
-The menu bar shows the current remaining percentage. The popover adds the reset time, a suggested pace, a burn-down chart, and one of three plain-language assessments: `Slow down`, `On track`, or `Room to use more`.
+<p align="center">
+  A macOS menu-bar app that tracks your Codex limit and recommends an hourly or daily pace.
+</p>
+
+<p align="center">
+  <a href="https://github.com/thrr87/codex-limits/actions/workflows/ci.yml"><img alt="CI" src="https://github.com/thrr87/codex-limits/actions/workflows/ci.yml/badge.svg"></a>
+  <img alt="macOS 14 or later" src="https://img.shields.io/badge/macOS-14%2B-black">
+  <img alt="Swift 5.10 or later" src="https://img.shields.io/badge/Swift-5.10%2B-F05138?logo=swift&logoColor=white">
+  <a href="LICENSE"><img alt="MIT License" src="https://img.shields.io/badge/license-MIT-blue"></a>
+</p>
+
+<p align="center">
+  <img src="docs/images/codex-limits-dashboard.png" width="465" alt="Codex Limits showing the remaining limit, usage chart, reset time, and suggested pace">
+</p>
 
 > [!NOTE]
 > Codex Limits is an independent, unofficial project. It is not affiliated with or endorsed by OpenAI.
 
-## What it does
+## What it tells you
+
+Codex shows how much usage remains. That number does not tell you whether it will last. Codex Limits compares your use with the time left before reset.
+
+Open the menu to see:
+
+- The percentage left, also shown in the menu bar.
+- A status: `Slow down`, `On track`, or `Room to use more`.
+- A suggested hourly or daily pace.
+- Current and past use plotted against the target.
+
+## How to read the chart
 
-- Reads the main Codex limit and any independent model-specific limits.
-- Records local samples to show actual usage during the current window.
-- Compares actual usage with a straight target path ending at a configurable safety buffer.
-- Projects the current pace and compares it with recent historical usage.
-- Keeps up to 90 days of usage history in versioned daily JSON files.
-- Can optionally replicate usage history through a private folder selected by the user.
-- Refreshes on launch, wake, popover open, every ten minutes, or when requested manually.
+- **Target** runs from 100% to your chosen buffer at reset.
+- **Actual** shows the samples recorded in the current window.
+- **Current** projects your recent pace through the reset.
+- **Historical** compares it with earlier use.
+
+The default buffer is 3%. You can change it in Settings.
+
+## Features
+
+- Shows the main Codex limit and model-specific limits.
+- Saves usage samples for the current window.
+- Estimates the percentage left at reset from current and past use.
+- Keeps up to 90 days of history in versioned daily JSON files.
+- Can copy history to a private folder that you choose.
+- Refreshes on launch, after wake, when you open the menu, every ten minutes, or on request.
 - Runs as a native SwiftUI menu-bar app with no third-party runtime dependencies.
 
-The default safety buffer is 3%. You can change it in the app settings.
+## How it works
+
+1. Codex Limits starts your installed Codex CLI and reads usage through its local app server.
+2. It saves percentage samples on your Mac. Daily token history supplies data for the first forecast.
+3. It compares actual and projected use with a target that ends at your chosen buffer.
+4. It shows a status and suggests how much you can use per hour or day.
+
+Forecasts improve as the app records more samples. They are estimates, not guarantees.
 
 ## Privacy
 
-Codex Limits is local-first:
+Codex Limits keeps usage data on your Mac:
 
-- It does not copy or store Codex credentials.
-- It starts the user-managed Codex CLI and reads usage through its local app-server interface.
-- It stores main-limit usage samples as versioned daily JSON files in the app's Application Support directory.
-- If history sync is enabled, it replicates only those samples to the selected folder. Preferences, credentials, and raw Codex responses remain local.
-- Synced history is readable JSON and contains observation times, remaining percentages, and reset times. Choose a private folder that is not shared with other people.
-- It has no telemetry, analytics, notifications, or direct network client.
+- It does not copy or store your Codex credentials.
+- It sends no telemetry or analytics. It has no notifications or direct network client.
+- It stores main-limit samples in the app's Application Support directory.
+- If you enable history sync, it copies only usage samples to the selected folder. Preferences, credentials, and raw Codex responses stay on your Mac.
+- Synced JSON files contain observation times, remaining percentages, and reset times. Choose a folder that you do not share with other people.
 - The Codex CLI may contact the Codex service as part of its normal operation.
 
 Do not attach raw CLI output or screenshots containing account usage to public issues.
@@ -38,45 +78,43 @@ Do not attach raw CLI output or screenshots containing account usage to public i
 
 - macOS 14 or later
 - Xcode 16.4 or later
-- a signed-in, Homebrew-managed Codex CLI at either `/opt/homebrew/bin/codex` or `/usr/local/bin/codex`
+- A signed-in, Homebrew-managed Codex CLI at `/opt/homebrew/bin/codex` or `/usr/local/bin/codex`
 
-Codex Limits deliberately does not use a Codex binary bundled inside another application. Install and update the standalone CLI yourself.
+Codex Limits does not use a Codex binary bundled with another app. Install and update the standalone CLI yourself.
 
-## Build
+## Build from source
 
 Clone the repository and run:
 
 ```sh
 Scripts/build-app.sh
 ```
 
-The script creates an ad-hoc signed app at `.build/release/Codex Limits.app`. It does not produce a notarized distribution build.
-
-To run it:
+The script creates an ad-hoc signed app at `.build/release/Codex Limits.app`. Launch it with:
 
 ```sh
 open ".build/release/Codex Limits.app"
 ```
 
-Open `Package.swift` in Xcode to work on the source.
+The project does not provide a prebuilt or notarized app. Open `Package.swift` in Xcode to work on the source.
 
 ## Test
 
 ```sh
 swift test
 ```
 
-The test suite intentionally uses synthetic usage data. Do not commit exported account data or local app state as fixtures.
+The tests use synthetic usage data. Do not commit exported account data or local app state as fixtures.
 
 ## Current limitations
 
-- No prebuilt or notarized release is provided.
-- Forecast quality improves as the app collects local samples.
-- Codex CLI app-server responses may change between CLI versions. If parsing fails, update the CLI before reporting a problem.
+- You must build the app from source.
+- The forecast needs local samples to improve.
+- Codex CLI responses may change between versions. If parsing fails, update the CLI before reporting a problem.
 
 ## Security
 
-Please report vulnerabilities privately. See [SECURITY.md](.github/SECURITY.md) for instructions.
+Report vulnerabilities privately. See [SECURITY.md](.github/SECURITY.md) for instructions.
 
 ## License