Option to add borders around figure shapes

[benwbooth]

I have a custom JBrowse 2 instance with some tracks. The features have auto-generated colors. Some of the colors end up being hard to see over the white background because they are too light. Please see the attached image file.

It would be great if there was a "color4" option that could be used to select a border around the box and chevron shapes. For example, setting color4 to black would add a black border. This would make lighter colors easier to view over the white background. By default it could be set to be the same as color1 which would make the border invisible.

Thanks!

[benwbooth]

jbrowse screenshot.pdf

[cmdcolin]

great idea. this should be as easy as adding a 'stroke' but will need a little extra work because of how our polygons are drawn currently...

the triangle on the features is actually a separate shape from the rectangle next to it so adding a stroke would end up weird. (reason they are separate shapes because long svg elements that extended offscreen would end up rendering broken in chrome....)

[cmdcolin]

There is now a configuration variable called "outline" on the svg feature renderer that may help with this, as of 1.6.8

[cmdcolin]

might be able to close for now