increase min scrollbar height to 2 (from 1)
@ -808,7 +808,7 @@ local function scrollbar_get_max_pos_and_height(scrollbar)
local frame_body = scrollbar.frame_body
local scrollbar_body_height = (frame_body and frame_body.height or 3) - 2
local height = math.max(1, math.floor(
local height = math.max(2, math.floor(
(math.min(scrollbar.elems_per_page, scrollbar.num_elems) * scrollbar_body_height) /
scrollbar.num_elems))