Double-Shadow Issue Back, Now With Ugly Shadows Too (Still happens even with disabling zeroing out of shadow's mask behind clients)

[dotjax]

Platform

Xubuntu Desktop 18.04.1 LTS

GPU, drivers, and screen setup

Single monitor, 144hz display, RX 580, open-source drivers

Compton version

0.1~beta2+20150922

Compton configuration

shadow = true; no-dnd-shadow = true; no-dock-shadow = true; clear-shadow = false; shadow-radius = 4; shadow-offset-x = -4; shadow-offset-y = -4; shadow-opacity = 0.4; shadow-red = 0.0; shadow-green = 0.0; shadow-blue = 0.0; shadow-exclude = [ "name = 'Notification'", "class_g = 'Conky'", "class_g ?= 'Notify-osd'", "class_g = 'Cairo-clock'" ]; shadow-ignore-shaped = false; menu-opacity = 0.9; inactive-opacity = 0.9; active-opacity = 1.0; frame-opacity = 1.0; inactive-opacity-override = false; alpha-step = 0.06; inactive-dim = 0.0; blur-kern = "3x3box"; blur-background-exclude = [ "window_type = 'dock'", "window_type = 'desktop'" ]; fading = true; fade-in-step = 0.3; fade-out-step = 0.3; fade-exclude = [ ]; backend = "xrender"; mark-wmwin-focused = true; mark-ovredir-focused = true; detect-rounded-corners = true; detect-client-opacity = true; refresh-rate = 0; vsync = "none"; dbe = false; paint-on-overlay = true; focus-exclude = [ "class_g = 'Cairo-clock'" ]; detect-transient = true; detect-client-leader = true; invert-color-include = [ ]; glx-copy-from-front = false; glx-swap-method = "undefined"; wintypes : { tooltip : { fade = true; shadow = false; opacity = 0.75; focus = true; }; }; fade-delta = 16;

Steps of reproduction

Run compton on Xubuntu 18.04.1 LTS and open any GT3 app with client-side window decorations or GTk3 based menus.

Expected behavior

Same drop shadows as the rest of clients.

Current Behavior & Other details

Double shadows. Disabling zeroed shadows behind clients causes an unfortunate shadow that's even uglier. Files attached:

This one is after I've disabled zeroing out shadow's mask behind the window.

**Note: I know this was opened up before, and I followed several guides, but I can't seem to disable shadows for Catfish or other GTK3 CSD apps. The Arch wiki has removed the section on disabling dual shadows, so I'm not sure what to do now. Thanks!

***Extra Note: If you would like any more information about my OS, compton, any sort of logging or driver info, let me know. I tried my best to cover everything.