LightningChart JS v.4.1 has been released!
Adding new product features, visual quality and performance improvements, and more.
Introducing dashed Lines
We’ve been listening closely to your feedback and are thrilled to announce that we’re now introducing dashed line patterns available for line-based series, gridlines, and constant lines.
An example use-case for dashed lines is, e.g., when comparing two types of values using solid lines for certain data and dashed lines for uncertain data.
Historical and projected revenue (dashed line)
Custom ticks in 3D charts
You can now manually place custom ticks within 3D charts. You’ll likely use this new feature in the following cases:
- Whenever a user needs a tick to be placed at a specific location.
- When using the categorical axis.
chart3D
.getDefaultAxisZ()
.addCustomTick()
.setValue(1)
.setTextFormatter((_) => 'Category 1')Flat themes & No-code editor
Flat color themes are simple yet elegant color variants that are now available as open-source which you can access in GitHub.
Flat themes examples
We have decided to make our flat themes available as open-source for those users who would like to use them as a reference for creating their own themes. This can help you develop a custom theme faster than starting from scratch.
No-code Themes Editor
In addition to the open-source flat themes, we’re releasing a free-to-use no-code Themes Editor that will help you fasten the creation of a custom theme, quickly modify fonts and colors, and directly export it to your application.
Visual improvements on MapChart
In LightningChart JS v.4.1 regions in a map chart can now be individually highlighted on hover.
Other Improvements
Performance has been an important topic in this new LightningChart JS v.4.1 release, especially for map charts:
- We’ve improved to loading speed to 5x faster from 250ms to 50 ms.
- CPU consumption in stress testing has been reduced to 15x less than previously.
- The GPU consumption has been reduced to half.
Get started with LightningChart JS v.4.1
See more news
Best Telerik Charts Alternative in 2026: GPU Performance for WPF, WinForms, and Web
Telerik from Progress is a comprehensive UI component suite covering WPF, WinForms, ASP.NET, Blazor, and JavaScript. The charting components: RadChartView for WPF and WinForms, and Kendo UI Charts for web and Blazor, arrive bundled with the suite purchase. For teams...
Streaming Data Visualization with WebSockets (2026): The Complete Tutorial
Every WebSocket tutorial on the internet shows the same thing: a server sends a random number every second, a chart updates. It works. The demo looks great. Then you deploy to production, your IoT sensors push 800 updates per second across twelve channels, and the...
Best ScottPlot Alternative in 2026: GPU Rendering, 3D Charts, Cross-Language Support
ScottPlot is genuinely excellent for what it is: a free, MIT-licensed, actively developed .NET plotting library with an honest focus on interactive large-dataset display. The GDI+ rasterized renderer — which draws the entire chart as a pixel bitmap rather than...
Using Fibonacci Tools in Trading: A Practical Guide for Market Analysis
Using Fibonacci Tools in Trading: A Practical Guide for Market AnalysisTechnical traders rely on various tools to identify potential support, resistance, and price targets. Among the most widely used are Fibonacci tools, which are based on the mathematical sequence...
If you have any questions, feel free to contact us!
©LightningChart Ltd 2026. All rights reserved.