[14.09.2022] Update:
- improved accuracy
- fixed glow with attachments chams
- changed server/client bullet impacts
- [api] [ui] [items] added :set_callback(function: func)
- [api] [ui] [items] added :set_group(number: group) [1-2]
- [api] [render] added rect_shadow_ex(vector_2d: xy, vector_2d: wh, number: rings, vector: sbr, spcr, sbs, number: length, color: col [, number: offset_x, number: offset_y])
- [api] [render] improved rect_shadow
- [api] [render] added text_gradient(font, x, y, color1, color2, text, smooth, dropshadow, outline)