Highway refs don't properly fit the shield

[naoliv]

Using this example (from https://www.openstreetmap.org/#map=18/-21.81209/-48.18708):

See how SP-310 and BR-364 are touching the upper and lower shield borders.
Actually, if we zoom, we can see that BR-364 is surpassing the box:

Isn't it possible to add some pixels on top and on bottom of the shield, to avoid this?
Or maybe reduce the vertical spacing between the values.

[nebulon42]

I suspect that this is a consequence of the recent font change.

[jojo4u]

Yes, it's Noto font metrics. I think the spacing should be reduced. The question is: Are tall glyphs to be expected on road refs? Or should only "X" and "g" taken into account? If the latter, the line height can be reduced up to 30% (as measured with the actual font metrics of Noto UI). Related to #2470.

[jojo4u]

Some examples with tall glyphs:
https://www.openstreetmap.org/#map=18/49.50693/10.88807
https://www.openstreetmap.org/#map=19/24.43478/120.69034
https://www.openstreetmap.org/#map=16/36.7281/9.1974 -> looking really bad
https://www.openstreetmap.org/#map=19/33.80099/10.88342
Source: http://overpass-turbo.eu/s/kp9

[pnorman]

Yes, it's Noto font metrics. I think the spacing should be reduced.

We need to recompute all the shield sizes, even if we reduce the spacing.

[jojo4u]

generate_shields.py has no comment how config['base'] was derived.

[nebulon42]

That are values I came up with by trying.