Arachne-Style Solid Infill/Surface Path Generator?

[MartynDerg]

Gonna preface this with the fact that I know next to nothing about coding, I'm just an end user, but just throwing a pitch out there:
An issue was brought up in the first five minutes of this video, https://youtu.be/_cgRIcup5BA?si=QhorYXUk9dxxMnn0 where parts appear to fail in these specific tests where there are gaps in the solid infill, due to the angle of the walls vs the angle of the rasterised infill. In the current solid infill and surface toolpath generator, the toolpath will continue along a line, hit a wall, move along the wall until it's (line width) away from the last line, and head in the opposite direction. Simple enough, but unfortunately for some curves, this method can create massive holes where no plastic is contacting the walls or the infill below.

I saw this and thought... what if we had an arachne style solid infill/surface generator that changes the line width to get nice and close to the wall. sort of ending up looking like

where purple represents line width, pink represents tool path, white represents travel maybe? if that's what it takes? I think you get the idea though. I've not thought too hard on exactly how it would work, certainly no idea how to code it, but just throwing it out there.

[MartynDerg]

I'll add, regarding that white travel, you could even take the opportunity to wipe into the wall slightly before doing the next raster line