Update the icon in the warning text component to match the defined text colour and background colour, rather than always being white on black

[owenatgov]

What

Swaps out calls to govuk-colour in warning text to references to $govuk-text-colour and $govuk-body-background-colour.

Why

During investigations into CSS custom properties as part of #4900, we noticed a number of places where a hypothetical change of colour scheme wouldn't properly permeate throughout the codebase. This establishes a direct relationship between the warning text component and the text colour and body background colour.

[github-actions]

📋 Stats

File sizes

File	Size
dist/govuk-frontend-development.min.css	113.25 KiB
dist/govuk-frontend-development.min.js	42.21 KiB
packages/govuk-frontend/dist/govuk/all.bundle.js	87.2 KiB
packages/govuk-frontend/dist/govuk/all.bundle.mjs	81.94 KiB
packages/govuk-frontend/dist/govuk/all.mjs	4.17 KiB
packages/govuk-frontend/dist/govuk/govuk-frontend-component.mjs	359 B
packages/govuk-frontend/dist/govuk/govuk-frontend.min.css	113.24 KiB
packages/govuk-frontend/dist/govuk/govuk-frontend.min.js	42.2 KiB
packages/govuk-frontend/dist/govuk/i18n.mjs	5.55 KiB

Modules

File	Size (bundled)	Size (minified)
all.mjs	77.67 KiB	40.18 KiB
accordion.mjs	22.71 KiB	12.85 KiB
button.mjs	5.98 KiB	2.69 KiB
character-count.mjs	22.4 KiB	9.92 KiB
checkboxes.mjs	5.83 KiB	2.83 KiB
error-summary.mjs	7.89 KiB	3.46 KiB
exit-this-page.mjs	17.1 KiB	9.26 KiB
header.mjs	4.46 KiB	2.6 KiB
notification-banner.mjs	6.26 KiB	2.62 KiB
password-input.mjs	15.15 KiB	7.25 KiB
radios.mjs	4.83 KiB	2.38 KiB
skip-link.mjs	4.39 KiB	2.18 KiB
tabs.mjs	10.13 KiB	6.11 KiB

View stats and visualisations on the review app

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Action run for 5f9e6ca

[github-actions]

Other changes to npm package

diff --git a/packages/govuk-frontend/dist/govuk/components/warning-text/_index.scss b/packages/govuk-frontend/dist/govuk/components/warning-text/_index.scss
index 10b0aa3d1..d221eecf6 100644
--- a/packages/govuk-frontend/dist/govuk/components/warning-text/_index.scss
+++ b/packages/govuk-frontend/dist/govuk/components/warning-text/_index.scss
@@ -27,11 +27,11 @@
 
     // When a user customises their colours the background colour will often be removed.
     // Adding a border to the component keeps it's shape as a circle.
-    border: 3px solid govuk-colour("black");
+    border: 3px solid $govuk-text-colour;
     border-radius: 50%;
 
-    color: govuk-colour("white");
-    background: govuk-colour("black");
+    color: $govuk-body-background-colour;
+    background: $govuk-text-colour;
 
     font-size: 30px;
     line-height: 29px;

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Action run for 5f9e6ca