Rendering short schedules (15 min)

[vozi314]

Hello,
i would like to ask about following:

Why are schedules rendered with small negative vertical offset, witch cases that schedules are shown in 3 columns instead of one as I would expect. Schedules are 12:00 - 12:15, 12:15 - 12:30, 12:30 - 12:45. I was trying to figure it out by theme config, but with no success. Did I missed something?

Great thanks in advance

[adhrinae]

Please refer to #563.