Why don't GTK programs display correctly on Archlinux?

Question

linux

I install the system as usual. I put lxde, firefox, chromium, etc., but GTK programs look terrible: either some details are missing, or the fonts are miserable "with a big gap".

Screenshots

configs

~/.config/gtk-3.0/settings.ini

[Settings]
gtk-theme-name=Raleigh
gtk-icon-theme-name=Adwaita
gtk-font-name=Liberation Sans 10
gtk-cursor-theme-size=18
gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
gtk-button-images=1
gtk-menu-images=1
gtk-enable-event-sounds=1
gtk-enable-input-feedback-sounds=1
gtk-xft-antialias=1
gtk-xft-hinting=1
gtk-xft-hintstyle=hintslight
gtk-xft-rgba=rgb

~/.gtkrc-2.0

include "/home/su/.gtkrc-2.0.mine"
gtk-theme-name="Raleigh"
gtk-icon-theme-name="Adwaita"
gtk-font-name="Liberation Sans 10"
gtk-cursor-theme-size=18
gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
gtk-button-images=1
gtk-menu-images=1
gtk-enable-event-sounds=1
gtk-enable-input-feedback-sounds=1
gtk-xft-antialias=1
gtk-xft-hinting=1
gtk-xft-hintstyle="hintslight"
gtk-xft-rgba="rgb"