cursor: Switch to BreezeX Black

I still prefer Breeze-Obsidian, but the reality is that it's unsupported
and nobody even seems to have the source any more :(

Allow `dpi` script to scale cursor relative to display scale according
to a fixed "standard" size, which for BreezeX is around 28px to closely
match the scale of the Breeze-Obsidian 16px.

Signed-off-by: Joe Groocock <me@frebib.net>

X11/xresources

@@ -36,5 +36,5 @@ Xft.hinting:    true
 Xft.hintstyle:  hintfull
 Xft.lcdfilter:  lcddefault
 
-Xcursor.size: 16
-Xcursor.theme: Breeze_Obsidian
+Xcursor.size: 28
+Xcursor.theme: BreezeX-Black

gtk-2.0/settings.ini

@@ -1,8 +1,8 @@
 gtk-theme-name="Arc-Dark"
 gtk-icon-theme-name="Xenlism-Wildfire"
 gtk-font-name="sans 9"
-gtk-cursor-theme-name="Breeze_Obsidian"
-gtk-cursor-theme-size=16
+gtk-cursor-theme-name="BreezeX-Black"
+gtk-cursor-theme-size=28
 gtk-toolbar-style=GTK_TOOLBAR_BOTH
 gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
 gtk-button-images=1

gtk-3.0/settings.ini

@@ -3,8 +3,8 @@ gtk-theme-name=Arc-Dark
 gtk-icon-theme-name=Xenlism-Wildfire
 gtk-application-prefer-dark-theme=true
 gtk-font-name=sans 9
-gtk-cursor-theme-name=Breeze_Obsidian
-gtk-cursor-theme-size=16
+gtk-cursor-theme-name=BreezeX-Black
+gtk-cursor-theme-size=28
 gtk-toolbar-style=GTK_TOOLBAR_BOTH
 gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
 gtk-button-images=1

scripts/dpi

@@ -4,6 +4,8 @@ set -eu
 # Based on https://github.com/vincentbernat/awesome-configuration/blob/master/bin/xsettingsd-setup
 CONF_DIR="${XDG_CONFIG_HOME:-$HOME/.config}"
 
+CURSOR_SIZE=28
+
 xrdbget() {
     set -o pipefail
     xrdb -query | grep -i -m1 "$1" | sed 's/^.*:\s//g' || echo "$2"
@@ -26,7 +28,7 @@ fi
 
 dpi=$1
 scale=$(( dpi/96 ))
-cursor=$(( dpi/6 ))
+cursor=$(( (dpi*CURSOR_SIZE)/96 ))
 
 # Update picom scale
 sed -i -e "s/strength =.*$/strength = $(( dpi*8/96 ));/" \