Identify hot and cold areas in your Jira data sets using the Heat map chart.
In addition to the X and Y axis values it will enrich your analysis with the “color axis”, being suitable for displaying correlations and patterns.
The chart may be configured on any Jira standard dashboard using the ‘Heat Map’ gadget in Performance Objectives for Jira app.
In the example below we are using Heat Map to show Work Log Time by Issue Type and by Work Log Author.

Please find the configuration screen and steps below:

Step 1: Add data source. Filter out the issues that need to be analyzed. Check the Configuration overview article for more information about the Data Sources settings and options.
Step 2: Select metric ‘Work Log Time (h)’ from the available metric options.
Step 3: Select field ‘Work Log Author’ for Horizontal by’ from the available field options.
Step 4: Select field ‘Issue Type’ for ‘Vertical by’ from the available field options. Save the configuration.
Step 5: (Optional) Change the default color.
Step 6: (Optional) Reorder the X-axis items with the custom reorder feature.

Video settings: Watch the video with the configuration steps:
You may utilize color change feature in Heat Map charts to create visually appealing dashboard with your preferred metrics.
Match data segments with colors that can be visually interpreted and keep them consistent.

Another example of report suitable to visualize with Heat Map chart is Support Requests by time of day.
Start your 30 days free trial of Performance Objectives: Charts for Jira from Atlassian Marketplace.