[RFE] Make the BrowserPicker selection window configurable with respect to its size and the size and font of its rows.

[claudio-salvio]

Hello,

The BrowserPicker window has by default a width that is narrow in some cases, partly due to the size of the icon and the font used in the rows.
On the other hand the height of that window makes the side scroll bar appear when there are more than 6 items.

It would be very convenient that the window is configurable in all possible aspects, if only through a configuration file.
The most relevant aspects are the height and width of the window, and regarding the rows, the size of the icon and font.

Best regards,
Claudio Salvio

P.S.: thanks for making BrowserPicker available and for the effort invested in developing it.