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>

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)