medium font sprites too high (with accents)
Accented sprites for the medium font are 13 pixels high. OpenTTD hard-codes a height of 10 pixels, allowing bottom and top one pixel for accents. This leaves OpenGFX' accented characters one pixel too high, causing glitches.
Make sure it's not an OpenTTD glitch.
#2 Updated by planetmaker about 9 years ago
Maybe and hopefully this might be fixed on the OpenTTD side in order to provide support for double-sized GUI: http://www.tt-forums.net/viewtopic.php?f=26&t=50095