Thanks! I looked at 'Brain Theme'. I'm so tired of these half-cooked, half-tested attempts. For years, I've been working with some really great IDEs (i.e. PyCharm or WebStorm by JetBrains. These guys really understand what usability is all about and listen to what users say.). With TheBrain, it always has been my impression, that they lack the will and/or the capabilities to get it really right. Otherwise there wouldn't be so many gui bloopers. Without a decent preview functionality it is way too cumbersome to change the color and/or the options. Just try to change the wallpaper and then to revert to your original setting if the new one doesn't suit you - a nightmare, because the dialog doesn't remember the original setting and has no 'Revert' or 'Cancel' option (just closing the window doesn't help either). BTW: 'Brain Theme' belonges to settings or preferences. So it should be (also) included in 'Preferences'.
Reinhard, TB 10.0.36.0, WIN 10
Quality is the result of attention paid to details.