Setting data.raw["utility-constants"].default.select_slot_row_count = 15 screws up the tabs in the Signal GUI, as seen in the screenshot.
Signal GUI doesn't properly wrap tabs when there are more slot columns
Re: Signal GUI doesn't properly wrap tabs when there are more slot columns
Thanks for the report. You also want to change select_group_row_count.
If you want to get ahold of me I'm almost always on Discord.