Halo Light

Its lowercase is tall: the x-height is 81% of the cap height, against a median of 71.1% for sans serif fonts, the tallest of all 17 sans serif fonts. Ascenders on b, d, h, k and l rise 4% above the capitals, and descenders on g, j, p, q and y drop 28.4% of the cap height below the baseline, shallower than 9 of the 16 other sans serif fonts. Halo Light runs 26.1% narrower than the median for sans serif fonts: an average lowercase letter, spacing included, is 71.8% as wide as the capitals are tall (an average capital, 83.9%). The o is close to a circle, 0.92 times as wide as it is tall, and W is the widest capital, at 1.35 times the width of H. Round letters overshoot: O rises 1.3% of the cap height above H and dips 1.3% below the baseline.

The letters stand upright, with no measurable slant. Vertical stems measure 5.1% of the cap height, the lightest of all 17 sans serif fonts. Ink covers 16.6% of each lowercase letter's box (its advance width by the cap height), lighter than 13 of the 16 other sans serif fonts. Strokes keep one thickness in every direction: the sides of o and O measure the same as their tops and bottoms.

Its 3,966 characters include 3,756 Chinese and 105 Latin letters, plus 105 figures, punctuation marks and symbols; 53 of the Latin letters are accented or special forms beyond A to Z. The word space measures 33.4% of the cap height, and the blank space either side of a lowercase letter takes up 13.5% of its width. Spacing is adjusted with 154 kerning pairs, the most of all 17 sans serif fonts. The tightest of them is AY, which closes up by 22.4% of the cap height. The figures have different widths, so columns of numbers set in Halo Light will not line up exactly.

19 other library fonts share Halo Light's underlying letter structure. Compared with Halo Light, Skyline Deco sets 31% wider, puts down 110% more ink and has a 73% x-height. Radio Deco cuts a thin line along each stroke, sets 21% wider and puts down 148% more ink. Garrison Stencil adds military stencil bridges, sets 24% wider and puts down 116% more ink.