dimarch-sddm-theme

Premium frosted-glass SDDM login theme for DimArch OS.

Features

• Frosted-glass login card with drop shadow
• Real-time clock (top-right)
• User avatar with priority chain: .face.icon → .face → ThemeAvatar if configured → DA fallback
• Session selector popup (capped at 5 visible items, scrollable)
• Power panel (shutdown / reboot / session)
• Multi-language: English and Russian included
• All visual parameters configurable via theme.conf

Dependencies

Arch Linux / CachyOS:

sudo pacman -S sddm qt5-graphicaleffects ttf-inter-variable rsync

Optional (cursor theme):

sudo pacman -S bibata-cursor-theme

Installation

git clone https://github.com/dmitrax/dimarch-sddm-theme
cd dimarch-sddm-theme
./install.sh

The installer auto-detects your system name (/etc/os-release) and locale ($LANG).

After system language change

sudo /usr/share/sddm/themes/dimarch/scripts/update-theme.sh

Manual overrides

# Set system name explicitly
sudo /usr/share/sddm/themes/dimarch/scripts/update-theme.sh --name "DimArch OS"

# Set locale explicitly
sudo /usr/share/sddm/themes/dimarch/scripts/update-theme.sh --locale ru

# Both at once
sudo /usr/share/sddm/themes/dimarch/scripts/update-theme.sh --name "DimArch OS" --locale ru

Available locales

Code	Language
en	English
ru	Русский

Add more by dropping a <code>.conf file into locale/.

Background

Place your background image at:

/usr/share/sddm/themes/dimarch/backgrounds/login-lock.jpg

Or change BgSource in theme.conf.

UI Scale

UI scale is detected automatically at SDDM startup based on monitor height:

Resolution	Scale
4K (≥2160)	1.5x
1440p	1.2x
1080p	1.0x
<1080p	0.85x

To override, set UiScale in theme.conf:

UiScale=1.3

Note: on Wayland, SDDM may expose logical/effective monitor size rather than physical pixels. If the UI looks too small or too large, set UiScale manually.

Multi-monitor

The theme exposes PrimaryX, PrimaryY, PrimaryWidth and PrimaryHeight in theme.conf, but these options are experimental.

SDDM may create a separate greeter view per monitor, so global monitor coordinates may behave differently depending on the backend and display setup.

Recommended default — leave at 0 unless you have tested your exact SDDM monitor mapping:

PrimaryX=0
PrimaryY=0
PrimaryWidth=0
PrimaryHeight=0

Test mode

sddm-greeter --test-mode --theme /usr/share/sddm/themes/dimarch

Notes

• PrimaryX/Y/Width/Height are experimental — leave at 0 unless you have tested your exact SDDM monitor mapping.
• In sddm-greeter --test-mode, login and shutdown actions may print socket errors. This is expected.
• If .face.icon is not readable by SDDM, the theme falls back to ThemeAvatar or DA monogram.
• SDDM Wayland backend is not tested with this theme. For experimentation see branch feature/sddm-wayland (planned).

Changelog

1.4.0

• Glass card: semi-transparent frosted card with layer.effect: DropShadow
• Power buttons integrated into card footer (pill-shaped, matches form width)
• Auto-height layout: card height adapts to content — no empty zones
• Background auto-detection in update-theme.sh — works with .jpg, .png, .webp
• SessionPopup transparency matches card style
• Configurable card geometry: CardContentTopMargin, CardFooterGap, CardBottomPadding, FooterHeight, FooterIconSpacing, FormWidthRatio
• CardHeight=0 enables auto-height mode

1.3.1

• Scale fix: auto thresholds revised — 4K→1.5x, 1440p→1.2x, 1080p→1.0x, <1080p→0.85x
• UiScale override in theme.conf — set explicitly if auto-detect is wrong
• SessionPopup: capped at 5 visible items with proper scrolling for long lists
• Shadow quality: samples = 2 * radius + 1 — smooth, no cutoff artifacts
• update-theme.sh: removed xrandr dependency — UI scale detected automatically at SDDM startup
• install.sh: excluded .git, install.sh, .gitkeep and docs from theme installation

1.2.0

• Multi-monitor support: PrimaryX/Y/Width/Height in theme.conf
• Auto UI scale based on monitor height
• All sizes scaled consistently across every component

1.1.0

• Localization system: all UI strings moved to theme.conf
• Added locale/en.conf and locale/ru.conf
• update-theme.sh replaces update-system-name.sh — handles both name and locale
• Auto-detect locale on install via $LANG / /etc/locale.conf

1.0.0

• Initial release