I have tested it on virtual machines. Work well with all windows versions. But still looks broken on linux machines with high dpi using mono latest version, which means it won't fix #41 .

It's because mono does not support the dpi awareness function add in .net 4.7.2. There may be three solution:

1. use wine instead
2. manually add some auto-scaling functions for linux mono platform only
3. move to cross-platform framework like Avalonia

Hi, this is too rough of a patch, and it removes some responsive layout methods that were introduced to support localization with dynamic texts.

I will chekc it out at some point, although I am still not sure if I will actually proceed with the update to .NET Framework 4.7 or move directly to Avalonia.

Use TableLayoutPanel and FlowLayoutPanel to re-add responsive layout methods that support localization with dynamic texts. Also fix #45 .
Also, Switch to Avalonia may be essentially equivalent to rewriting, which needs lots of effort. Therefore, This modernization will be a great transitional choice to solve the dpi problem. What's more, moving to .net standard 2.0 will enable the function in gMKVToolNix to be directly used if switching to Avalonia.