GO_SE_BONALE
→ OPAQUEA `tlhotlha` value: remove all transparency, leaving solid colour.
tlhotlha(GO_SE_BONALE)It sets every dot’s transparency to 255 — that is, nothing shows through from behind.
On an already-opaque canvas it does nothing at all — measured: not one of six sampled points changed. On a see-through canvas it does: [255, 0, 0, 128] becomes [255, 0, 0, 255] — measured.
It is the one effect that appears to do nothing when you try it on an ordinary canvas, without anything being wrong.
The name is a description rather than a translation. No Setswana word for opaque was found in any source searched, so the name says what the effect does: not see-through.
Examples
Section titled “Examples”tiro setaLoeto() {
thalaKanefase(300, 160);
phimola();
diri naledi = letela tlisaSetshwantsho('naledi.png');
setshwantshoMmala(255, 120);
thalaSetshwantsho(naledi, 75, 5, 150, 150);
tlhotlha(GO_SE_BONALE, maaka);
tlhalosa('Naledi e e neng e bonala, jaanong e tletse mmala mme bokamorago bo bontsho.');
}