I'm trying Linux Mint Debian Edition XFCE, and want to use a specific theme; only drawback - the font color and font shadow are unreadable, how can I change them? Also the active/inactive color window separation is very hard to distinguish. I added a screenshot for demonstration. (seems that stackexchange doesn't zooms in the image when clicking, so you have to use the "right-click>view image" option, I apologize)
You will need to copy the theme from "/usr/share/themes/themename/gtkrc" to
$HOME/.config/gtk-2.0/gtkrc and modify it. Please see xfwm4 theme guide on the xfce wiki.
A shadow can be added to the title text by setting the boolean value “
title_shadow_active” for the focused window, and “
title_shadow_inactive” for the other unfocused windows.
Possible values are “false”, “true”, and “frame”.
(2) Titelbar decorations,
For title bar decorations, xfwm4 uses 5 pixmaps named
top-right-active.xpmmaking up the corners on each end as per figure 2 below.