MATE desktop fixes (updated)
Last week I upgraded my Linux Mint 18 MATE desktop distro to 18.3. With the massive progresses GNU/Linux has done in the desktop, those kind of upgrades use to be simple tasks and no more hassle is to be expected. Except this time where I had several a GUI-related annoyances.
1. MATE panel transparency
I recently became addicted to /r/unixporn and made myself a shiny modern desktop made of MATE and rofi. This desktop use the Arc-Darker theme which used to work nicely with mate-panel version 1.14 but was messing transparency with version 1.18, the one shipped with Mint 18.3.