Would be great if we could default the widget to hide while it's initialising.
Currently, when I restart BTT or open a new touchbar group, all the active widgets show up everywhere, then eventually disappear as they load.
This could be cleaned up by having the script widgets hidden while they load (before they return a result) and thus greatly decrease the impression of a "glitchy shifty roundy" preset.
Of course, in some cases it's preferred to have the widgets showing while they load (e.g. bold, italic, underline buttons), so a checkbox to toggle how it behaves while loading would be great.