The user should be able to choose the size of glyphs in the "palette"

[rosmord]

With high resolution ("4K" or "Retina") screens, some elements drawn by JSesh appear way too small. The latest versions of JSesh have solved this for plain text, and some hieroglyphic menus can be fixed through a preference option, but currently, the size of elements in the palette is fixed.

The simplest way to do this would probably be to allow the signs' size to be chosen directly in the palette itself.