import { imgui } from "https://deno.land/x/dwm@0.3.2/ext/imgui.ts";
const { setNextItemWidth } = imgui;
set width of the next common large "item+label" widget.
>0.0f
: width in pixels;
<0.0f
: align xx pixels to the right of window
(so -FLT_MIN always align width to the right side).