static: remove backdrop's overlay colour

passbook/root/settings.py

@@ -412,6 +412,7 @@ _LOGGING_HANDLER_MAP = {
     "daphne": "WARNING",
     "dbbackup": "ERROR",
     "kubernetes": "INFO",
+    "asyncio": "WARNING",
 }
 for handler_name, level in _LOGGING_HANDLER_MAP.items():
     # pyright: reportGeneralTypeIssues=false

passbook/static/static/src/pages/SiteShell.ts

@@ -24,6 +24,7 @@ export class SiteShell extends LitElement {
             css`
                 :host {
                     position: relative;
+                    --pf-global--BackgroundColor--dark-transparent-100: rgba(0,0,0,0);
                 }
                 :host .pf-l-bullseye {
                     position: absolute;