Logo of <a href="https://en.wikipedia.org/wiki/AdaCore" class="extiw" title="en:AdaCore">en:AdaCore</a> in the original colours (~2005)
<a href="//commons.wikimedia.org/wiki/User:Spider" title="User:Spider">Spider</a>
<span class="int-own-work" lang="en">Own work</span> (tracing of a raster logo in Inkscape + manual fixing); source of the logo itself: <a rel="nofollow" class="external free" href="http://www.sigada.org/conf/sigada2005/adacore.jpg">http://www.sigada.org/conf/sigada2005/adacore.jpg</a>