Heatmap for VS Code

Heatmap lets you visualise the relative age of lines in source under Git version control. By toggling the heatmap on, the background colour of every line in the file is altered to reflect the relative age; the brightest lines are the most recent.

Requires git in your $PATH.

Originally created to help understand how code has changed over time while auditing for security issues.

Installation

Install through the Visual Studio Code Marketplace: https://marketplace.visualstudio.com/items?itemName=chrisjdavies.heatmap

Example

Here's a screenshot showing the relative age of some lines in the FreeBSD kernel source:

Screenshot

Commands

Heatmap adds the following commands to the command palette:

Heatmap: On
Heatmap: Off

Configuration

Property	Description	Type	Default value
`heatmap.heatLevels`	The number of different heat levels to visualise.	Integer	10
`heatmap.heatColour`	The colour of the "hottest" heat level (most recent changes), as a list of numbers R, G, B, or a hex colour code.	String	`200,0,0` or `#C80000`
`heatmap.coolColour`	The colour of the "coolest" heat level (oldest changes), as a list of numbers R, G, B, or a hex colour code.	String	Same as heatColour, but with 100% alpha
`heatmap.showInRuler`	Whether to show the heatmap in the overview ruler.	Boolean	true

Thanks

Thanks to DALL-E 3 for generating the icon/logo.
Thanks to @nhale25 (Nick) for contributions and improvements.

Heatmap