<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>I'm looking at http://cairographics.org/operators/ for CAIRO_OPERATOR_ADD.</div><div><br></div><div>I wonder whether the formulas are written correctly.</div><div><br></div><div>My reading of it is:</div><div><br></div><div>src: rgba(1, 0, 0, 1) <br></div><div>OPERATOR_ADD</div><div> dst: rgba(1, 0, 0, 1)</div><div>RESULT: rgba(2,0,0,1).</div><div><br></div><div>i.e. the red is 200%.</div><div><br></div><div>But that can't fit in a CAIRO_FORMAT_ARGB32<br></div><div><br></div><div>What am I missing?</div><div><br></div><div>Thanks<br></div></div></body></html>