No issue as minor issue

Summary

Invalid rgba() arguments
File: modules/_tables.scss:70-74 (.dnnTableFilter)
background: rgba(
var(--dnn-color-foreground, 0),
var(--dnn-color-foreground, 0),
var(--dnn-color-foreground, 0),
0.04);
Elsewhere in the same file (lines 50-54) the correct pattern is used:
separate -r/-g/-b channel variables as the three rgba() numeric arguments.
Here the full color variable (--dnn-color-foreground, which resolves to
something like #444) is used as all three channel arguments instead of
--dnn-color-foreground-r/-g/-b. rgba() expects numbers 0-255 for the first
three arguments, not a color value, so this declaration is invalid and is
dropped by the browser.

Solution:
background: rgba(
var(--dnn-color-foreground-r, 0),
var(--dnn-color-foreground-g, 0),
var(--dnn-color-foreground-b, 0),
0.04);