Problems about the Search Text highlight (memory consumption, style)

[MasterInQuestion]

    What's the exact implementation of Search Text?
    Does it excessively utilize "const" alike (or bad variable management)?
    Which seems to unnecessarily consume lots of memory.

    Also a new highlighting scheme for reference:

    ; that shall address the inefficiency of current.
    .
    Source:
[[

<meta charset="UTF-8" />
<style>
	pre { margin: 0; padding: 0.8em 0.4em; }
	q { quotes: none; border: 1px solid rgba( 255, 0, 255, 0.25 );
	background-color: #FF0; color: #00F; }
</style>
<pre style="background-color: #FFF; color: #000"
	>Art <q>véritable</q> est indépendant de <q>la</q> forme.</pre>
<pre style="background-color: #7f7f7f; color: #FFF"
	>Art <q>véritable</q> est indépendant de <q>la</q> forme.</pre>
<pre style="background-color: #000; color: #FFF"
	>Art <q>véritable</q> est indépendant de <q>la</q> forme.</pre>
<pre style="background-color: #FF0; color: #000"
	>Art <q>véritable</q> est indépendant de <q>la</q> forme.</pre>
<pre style="background-color: #FF0; color: #00F"
	>Art <q>véritable</q> est indépendant de <q>la</q> forme.</pre>

]]
    "rgba( 255, 0, 255, 0.25 )" seems equivalent of "#ffbf40" in this case.
    ("background-color" fuses into "border"..?)