Dark mode blue line colour too hard to see

[CaverBruce]

I picked up a survey from someone with drawing linework all in blue, and noticed that I cannot see it properly on the black background.

The blue lines appear somewhat 'ultra-violet' to me, and so while I can sort of make out the walls against the black background, I cannot for example read the handwritten text or see detail when viewed at actual size (zoom out until the image is 70 mm wide on your screen). I am not aware that I have any vision/colour issues, but maybe...

The other colours are OK I think. All the colours are OK in light mode.

Suggested resolution. Move the blue drawing colour more towards the cyan end of the spectrum.

[richsmith]

The dark blue looks OK to me on the black, but everyone's eyes are different! I was expecting blue to be mainly used for drawing water rather than walls.

I will experiment...