Version with thicker (larger) header bar

[m110s]

All Arc based themes are some kind of compact version of Materia based themes. Personally, I prefer Materia standard header bar size. Would you consider to add version with Materia like size of header bar?

[shooit]

I also see very small header bars. It could be due to my HiDPI screen. Is there a way to configure this?

[alkaris2]

It would be really nice to resize window title bars and buttons to the user's preference if they want large or small buttons and title bars, perhaps with the install script you could add something in the tweak options that changes the current sizes of these things. Either predefined or read user input own values. If letting user input own values, then you want it to print existing size values like

Current: 18px  - 22px (default)
Enter manual size value in px: {user_input_here}