• Update the styles management
• CSS

You can modify the design of a flow's tooltip by playing with the css

Update the styles management

Create a new file or directly update the digdash css main file.

Add the css below.

CSS

Update properties of captionBox class.
Add !important instruction to each line
For instance:
.captionBox
{
   fill:rgb(0, 51, 134) !important;
   fill-opacity:0.80 !important;
   stroke-width: 0.6 !important;
   stroke: #FFF! important;
}