As we have previously established ;-) running Eclipse on ubuntu is a bit disappointing on the UI side. Things are even worse now that Juno is out. Are there any tweaks specific to Gtk3 and Juno that help make things better?
The new UI maybe needs some getting used to, but I'm not convinced. Padding got much worse with all the extra (useless?) space between panes. The gradient on the toolbar looks ugly, the quick search looks like it needs some more polish, the buttons to switch perspectives maybe would look nicer without the quick search bar, tabs are waaay to big. Not sure the color scheme has been fixed since I'm running a modified theme for the sake of old 3.7 (the infamous white on black tooltips)
You may switch to classic Theme in the menu: Window->Preferences->General->Appearance. This will get you back to the looks in eclipse 3.7 if you find that more appealing.
The only solution I like is using jeeeyul's eclipse-themes.
For Linux Mint Users (and maybe others too):
This is a fix for this issue:
https://bugs.launchpad.net/linuxmint/+bug/1168281
This next CSS modifications make the tabs much smaller:
The problem with that is that the buttons of the tabbed panel (maximize, minimize, etc) will become tiny. That happens when swt-tab-height < 30. If anybody knows how to resize those buttons. They are huge and force the tab height to minimum of 30!
Hi make the definition in the e4_basestyle.css for .MPartStack{}