Lua obscures conf images

[quiltedstars]

Issue

Scripting lua with rounded corners requires adding a background colour for it to appear in Conky (and therefore requires the background in conkyrc to be transparent). However, when I add images into the conkyrc file, Lua draws the background overtop of the images, even though text and bars appear correctly. Changing the alpha in lua to 0 shows that the images are rendered in conkyrc, and removing the background colour in lua and adding it in conky eliminates the rounded corners.

Information

I believe this issue should be OS/version agnostic.

To replicate, append these to their respective spots:

background.lua

require 'cairo'

corner_r=45

bg_colour=0x121212
bg_alpha=1 (change to 0 to see that the image does in fact render)

function rgb_to_r_g_b(colour,alpha)
  return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end

conky.config = {

own_window_transparent = true [but it also worked with false],
own_window_argb_value = [any],
lua_load = '~/background.lua'
lua_draw_hook_pre = '(whatever is the main function)'
};

conky.text = [[
${color7}${font :size=14:bold}${alignr}SYSTEM${image ~/void.png -p 150,0 -s 25x25}${font}
...
]]

Is there a way to change this, either within lua or within the conf file? I can only barely make my way around lua, so I don't know how to add an image into lua, and I've tried to search, but haven't found anything. I apologize if it's obvious to most!

[rdschmidt]

require "imlib2"
function image (im)
    local x = (im.x or 0)
    local y = (im.y or 0)
    local w = (im.w or 0)
    local h = (im.h or 0)
    local file = tostring (im.file)
    if file == nil then print ("set image file") end
    local show = imlib_load_image (file)
    if show == nil then return end
    imlib_context_set_image (show)
    if tonumber (w) == 0 then
        width = imlib_image_get_width ()
    else
        width = tonumber (w)
    end

    if tonumber (h) == 0 then
        height = imlib_image_get_height ()
    else
        height = tonumber (h)
    end

    imlib_context_set_image (show) 
    local scaled = imlib_create_cropped_scaled_image (0, 0,
            imlib_image_get_width (), imlib_image_get_height (), width, height) 
    imlib_free_image ()
    imlib_context_set_image (scaled)
    imlib_render_image_on_drawable (x, y)
    imlib_free_image ()
    show = nil
end

--Call: image ({x = 100, y = 100, h = 50, w = 50, file = "/path/to/image"})

source: brndnmtthws WIKI

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