How do I change colors in Zim (wiki editor) running on Kubuntu 18.10?

These are the colors present in Zim which uses GTK

How can I change them to more of my liking? The color for links is very hard to read on the dark Breeze theme.

Kubuntu 18.10 (Kernel: 4.18.0-17-generic) & Zim (0.68) installed via terminal

Solution 1:

I'm still on Kubuntu 18.04 but it appears that the version of Zim is the same in 18.10.

• Zim seems to be a gtk2 application
• Kubuntu allows users to choose different gtk2 and gtk3 (and qt) themes.
• Open System Settings > Application Style > GNOME Application Style and make your selections there. However, certain aspects of Zim's appearance are not governed by the gtk2 theme.
• Zim's Help > FAQ mentions that a user can

… change the colors used for links, underline etc. ?

Copy "/usr/share/zim/style.conf" to "~/.config/zim/" and edit as you see fit. See the Config Files page for the syntax of this file.

That allows users to modify several aspects of Zim's appearance, including links.

To get the image below, I edited my ~/.config/zim/style.conf to change the link color from blue to aquamarine.