[css-color-4] gory details of how the sausage is in fact made

Author: svgeesus

css-color-4/Overview.bs

@@ -1165,9 +1165,20 @@ The ''<color>/currentcolor'' keyword</h3>
 	</div>
 
 	Note: Multi-word keywords in CSS usually separate their component words with hyphens.
-	''<color>/currentcolor'' doesn't, because it was originally introduced in SVG
-	as a special attribute value spelled "currentColor",
-	rather than a CSS value.
+	''<color>/currentcolor'' doesn't, because (deep breath)
+		it was originally introduced in SVG
+		as a property value, "current-color" with the usual CSS spelling.
+		It (along with all other properties and their values)
+		then became presentation attributes and attribute values,
+		as well as properties,
+		to make generation with XSLT easier.
+		Then all of the presentation attributes were changed
+		from hyphenated to camelCase, because the DOM
+		had an isse with hyphen meaning "minus".
+		But then, they didn't follow CSS conventions
+		anymore so all the properties and property values
+		that were <em>already</em> part of CSS were changed back to hyphenated!
+		''<color>/currentcolor'' was not a part of CSS at that time, so remained camelCased.
 	Only later did CSS pick it up,
 	at which point the capitalization stopped mattering,
 	as CSS keywords are <a href="https://infra.spec.whatwg.org/#ascii-case-insensitive">ASCII case-insensitive</a>.