Cardano developer Sebastien Guillemot has donated $460,000 in ADA to the Cardano treasury through his company dcSpark.The contribution consists of a $400,000 loan and $60,000 in interest, enabled by the newly added on-chain treasury donation feature.The donation was made using ADA purchased at an average price of $0.67 per token, but ADA's price has since dropped.Despite the market dip, the donation aims to increase the Cardano treasury's reserve and support grants, development, and future initiatives.