I am on XFCE, and this attached image is of some kind of default color picker. Ideally, I would like to know how to change the default color picker to something similar to gcolour2, but if that is impossible, I would just like to know what this little program is called.
I have installed gpick and gcolor2.
pacman -Sii gpick gcolor2
Even on KDE 4, I used agave, but it isn’t maintained anymore. I’m on XFCE now. I went to a website, https://alternativeto.net/, to checkout alternatives.
I don’t think any of the above is going to help you though, if you are asking about changing XFCE’s Setting’s UI. If someone says otherwise, I’d be interested too.
How do I change the Title Bar colour? Currently it is black and very hard to read
XFCE Settings Manager > Appearance > Style
XFCE Settings Manager > Window Manager > Theme