Losslessly minify images used in VLC
There are many images used in VLC and all of them can be losslessly minified. In my test run on VLC savings were 467kB from 1MB with maximum 98,5% savings per file. Optimization is very safe and quick to implement (just replacing images).
Benefits: smaller installer, faster download, faster VLC startup, smaller memeory footprint
VLC 2.2.4 OS: MacOS Sierra 10.12.4 SW used for image minification: ImageOptim