Tests where text is considered intersected by the cursor when letter-spacing is used.
The first two lines should look the same, but the second line is using a slightly different svgfont that defines an empty path for the space glyph.
The third line doesn't have any spaces, just letter-spacing, so there are no glyphs in between the letters. Hovering the whitespace between the letters should not highlight the line.
The fourth line has a space glyph between the other glyphs, and letter-spacing.
The fifth line has no spaces only letter-spacing.
Slowly move the mouse over the characters on each row.