I don't know if this is a really a bug. But GroupBox in dialogs have a bigger size inside the border of the GroupBox.
I have made a dialog, which works great in 7.78. But in 7.79 there is this problem.
Maybe not a huge issue, but got surprised that my button was overlapped.
Button in 7.79 is overlapped. But in 7.78 it's not.
in mIRC 7.79:
![[Linked Image from i.ibb.co]](https://i.ibb.co/zWMqWxVb/mirc-dj-W4l4gf-LD.png)
in mIRC 7.78:
![[Linked Image from i.ibb.co]](https://i.ibb.co/pjB8Hn0N/mirc-3svu-C5-DPb0.png)