Hi ​@lma, thanks for posting in our Community! 

Could you let us know whether this occurs with all swim lanes and whether you are using a template? 

The color of the font and the background of the title can be adjusted in the panel at the top. For the title background specifically, you can select Line color and pick a different shade, as such:

Let us know if this helps! Cheers

Thank you for coming back to me. I am just using the default swimlane as found in the flowchart set of shapes, no templates.

Interested to discover that the background shading of the title is adjusted by setting the line colour, not the fill colour? When I do that, the lines on the swimlane all change too. I don’t understand why the two are connected. Surely the background colour is a fill, not a line, and it shouldn’t affect the rest of the shape?

How do I set a title for the diagram with no background whilst retaining the default colour lines around the swimlanes? My workaround is just to put a text box in position and group everything, which gets awkward.

Hi ​@lma, jumping in here too! As you mentioned, and ​@Zuzia S demonstrated, the background shading of the swim lane title is adjusted with line color, and matches the line color as shown below. 

I apologize for any confusion here and any frustration this might cause. We’re very interested in your feedback and committed to continually improving our products. If you’d like to leave feedback on this, I suggest creating an idea for the Product Feedback section of the community. 

Additionally, I don’t believe this is exactly what you are looking for, but I’d like to mention one other option here in case it is useful for you. You can add a title to your swim lane and remove the line color to make the background of the title transparent. From the swim lane panel on the right, you can then adjust the color fill of the headers and lanes as shown below.

Please let us know if you have any additional questions or concerns!