Please describe the problem:
When you specify a line with a 1 pixel stroke-width and specify crispEdges for the shape-rendering style, the line is drawn blurry and is 2 pixels wide.

Steps to reproduce:
Render the following SVG to reproduce:
<svg xmlns="http://www.w3.org/2000/svg" width="700" height="300" >
<line x1="15" y1="0" x2="15" y2="300" stroke="#000" stroke-width="1px" style="shape-rendering: crispEdges" />
</svg>

Actual results:
Aforementioned blurry line.

Expected results:
I would expect a 1 pixel, un-antialiased line.

Does this happen every time?
Yes

Other information:
In the source for librsvg-2.23.3, I modified ./rsvg-cairo-draw.c:52 and was able to solve the problem.

- cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT);
+ cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);

While this solution solves my problem, I don't know if it affects anything else.