BL-025 - the last tint of the second brand blue, and the grep that missed it

help.js's search-focus ring was rgba(37,99,214,.15) - the banned #2563d6 as a
space-free rgb triple, which slid past color_check's spaced grep ('37, 99,
214') from the day BL-008 removed the colour. C4's recorded exception
legitimately allows rgba ALPHAS as opacity recipes; the defect was the base
colour under the alpha. Rebased onto THE blue: rgba(15,98,254,.15).

color_check compares space-free and case-insensitive now, in both the theme
check and the consumer sweep, so no spelling of the dead blue can return.

Items: BL-025 (closed), C4, BL-008 lineage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/waves/backlog.md

@@ -538,7 +538,7 @@ deliberately deferred.
   drive-by CLAUDE.md forbids; the audit's job was to measure and document.
 - **Suggested wave or follow-up:** next revision, one task, using the T7.9 kit.
 
-### BL-025 — The second brand blue survives as one rgba focus tint in help.js
+### BL-025 — CLOSED 2026-08-20 (tint rebased onto THE blue; color_check greps space-free spellings)
 
 - **Found during:** the 2026-08-20 transparency fix (undefined-token sweep)
 - **Where:** `help.js`, the help-centre search input's `:focus` rule:

html/help.js

@@ -139,7 +139,7 @@
   .ui-help-search{ flex:1; position:relative; max-width:420px; }
   .ui-help-search input{ width:100%; padding:8px 12px; border:1px solid var(--cds-border-strong); border-radius:0;
     font-size:13px; outline:none; background:var(--cds-layer-accent); }
-  .ui-help-search input:focus{ border-color:var(--cds-focus); background:var(--cds-layer); box-shadow:0 0 0 2px rgba(37,99,214,.15); }
+  .ui-help-search input:focus{ border-color:var(--cds-focus); background:var(--cds-layer); box-shadow:0 0 0 2px rgba(15,98,254,.15); }
   .ui-help-head .ui-help-x{ margin-left:auto; background:none; border:none; font-size:20px; cursor:pointer; color:var(--cds-text-secondary); line-height:1; }
   .ui-help-wrap{ display:flex; flex:1; min-height:0; }
   .ui-help-nav{ width:230px; flex:none; border-right:1px solid var(--cds-border-subtle); overflow:auto; padding:10px 8px; background:var(--cds-layer-accent); }

tests/color_check.py

@@ -53,8 +53,11 @@ def main():
     print("\n2. one blue, one amber")
     theme = io.open(os.path.join(HTML, "theme-light.css"), encoding="utf-8").read()
     code = strip_comments(theme, True)
+    # BL-025 widened this: the rgb spelling is compared space-free, because
+    # rgba(37,99,214,.15) in help.js slid past the spaced grep for months.
     chk("the second brand blue (#2563d6) is gone from the theme itself",
-        "2563d6" not in code and "37, 99, 214" not in code)
+        "2563d6" not in code.lower()
+        and "37,99,214" not in code.replace(" ", ""))
     chk("the ninth amber (--wp-status-warning-text-alt) is deleted",
         "--wp-status-warning-text-alt" not in code)
     others = []
@@ -63,7 +66,8 @@ def main():
             continue
         src = strip_comments(io.open(os.path.join(HTML, name), encoding="utf-8").read(),
                              name.endswith(".css"))
-        if "warning-text-alt" in src or "2563d6" in src:
+        if ("warning-text-alt" in src or "2563d6" in src.lower()
+                or "37,99,214" in src.replace(" ", "")):
             others.append(name)
     chk("...and no consumer still references either", not others, others)