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Colour blindness and topos

One of the very kind proof readers raised the issue of colour blindness and how it might relate to my topos. Originally I planned to use white lines (with various dots and dashes to distinguish lines that overlapped) but I felt they weren’t clear enough so started using a mix of white and red or green (which I used depended on the colour of the background) dashed lines.

So I have redrawn one topo in four different ways to see which is most effective.

1. Red and white dashed lines

Glendo-topo-ForestWall-double

2. White dashed lines with a black background. Glendo-topo-ForestWall-double-blackandWhite

3. White dashed lines.

Glendo-topo-ForestWall-double-white

4. White solid lines.

Glendo-topo-ForestWall-double-solidwhite

 

Thoughts welcome…

 

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