The feedback can contain code-optimizations, just thoughts on my work or anything else.

Sundays
Rainmeter Suite
Custom Right-Click menu (almost everything is customizable in an easy way), moreover the skin is completely scalable and adapts automatically to the user's resolution - of course he can resize it completely free to his liking.

More information from DeviantART http://fuckyeahlucas.deviantart.com/art/Sundays-Rainmeter-Suite-v1-4-633946009.
Download
Sunny
Rainmeter Suite
Custom Right-Click menu (almost everything is customizable in an easy way), the downloadable version is not scalable yet.

More information from DeviantART http://fuckyeahlucas.deviantart.com/art/Sunny-Rainmeter-Suite-v2-1-613381825.
Download
Spotify Control
Skin to control Spotify
Fully scalable in three versions (full: with album cover, song information, control buttons etc., more minimal with control buttons and song information and the bare minimum: just control buttons)
This skin contains a very unhandy control skin to avoid log-spamming from the spotify plugin. Nevertheless, there is a returning warning regarding !ActivateConfig now. But this is a better solution than a log-spamming plugin.

More information from DeviantART http://fuckyeahlucas.deviantart.com/art/Spotify-Control-working-Rainmeter-Skin-v2-3-594025385.
Download
Three other, old and not regularly maintained skins available under http://fuckyeahlucas.deviantart.com/gallery/