Use Atkinson Hyperlegible as default font

Add a Shift desktop theme package and point the look-and-feel
defaults at Atkinson Hyperlegible Next / Mono.

CMakeLists.txt

@@ -149,6 +149,8 @@ plasma_install_package(${SHIFT_SHELL_PACKAGE_DIR} org.kde.plasma.mobileshell she
 
 add_subdirectory(bin)
 add_subdirectory(color-schemes)
+add_subdirectory(desktoptheme)
+add_subdirectory(fonts)
 add_subdirectory(icons)
 add_subdirectory(wallpapers)
 add_subdirectory(components)

desktoptheme/CMakeLists.txt

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2026 SHIFT Contributors
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Install the Shift Plasma desktop theme. The package starts empty and
+# inherits everything from the system "default" theme; override SVGs are
+# added one at a time as identity work progresses, so each override can
+# be reviewed visually in isolation.
+install(
+    DIRECTORY org.shift.desktoptheme
+    DESTINATION ${KDE_INSTALL_DATADIR}/plasma/desktoptheme
+)

desktoptheme/org.shift.desktoptheme/README.md

@@ -0,0 +1,21 @@
+<!--
+SPDX-FileCopyrightText: 2026 SHIFT Contributors
+SPDX-License-Identifier: GPL-2.0-or-later
+-->
+
+# Shift Plasma desktop theme
+
+Empty package. Inherits the system "default" desktop theme. SVG overrides are
+added incrementally so each visual change can be reviewed in isolation in the
+preview.
+
+The shell currently references these `KSvg` paths and they are the only ones
+worth overriding here:
+
+- `widgets/panel-background` (`solid/widgets/panel-background` variant)
+- `widgets/background`
+- `widgets/slider`
+- `widgets/tabbar`
+
+Anything not provided here falls back through the inheritance chain to the
+system Breeze theme, so adding overrides is strictly additive.

desktoptheme/org.shift.desktoptheme/metadata.json

@@ -0,0 +1,14 @@
+{
+    "KPackageStructure": "Plasma/Theme",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Name": "SHIFT Contributors"
+            }
+        ],
+        "Description": "Shift Plasma theme",
+        "Id": "org.shift.desktoptheme",
+        "License": "GPL-2.0-or-later",
+        "Name": "Shift"
+    }
+}

desktoptheme/org.shift.desktoptheme/metadata.json.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: 2026 SHIFT Contributors
+SPDX-License-Identifier: GPL-2.0-or-later

fonts/CMakeLists.txt

@@ -0,0 +1,22 @@
+# SPDX-FileCopyrightText: 2026 SHIFT Contributors
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Install bundled font files (if any are present) into the system font dir
+# so the shell session can render the configured default font even on
+# distributions that do not package it.
+#
+# Drop OFL-licensed font files into fonts/AtkinsonHyperlegibleNext/ and
+# fonts/AtkinsonHyperlegibleMono/ alongside their SPDX .license sidecars.
+
+file(GLOB SHIFT_FONT_FILES
+    LIST_DIRECTORIES false
+    "${CMAKE_CURRENT_SOURCE_DIR}/*/*.ttf"
+    "${CMAKE_CURRENT_SOURCE_DIR}/*/*.otf"
+)
+
+if(SHIFT_FONT_FILES)
+    install(
+        FILES ${SHIFT_FONT_FILES}
+        DESTINATION ${KDE_INSTALL_DATADIR}/fonts/shift
+    )
+endif()

fonts/README.md

@@ -0,0 +1,36 @@
+<!--
+SPDX-FileCopyrightText: 2026 SHIFT Contributors
+SPDX-License-Identifier: GPL-2.0-or-later
+-->
+
+# Shift bundled fonts
+
+Drop the Atkinson Hyperlegible Next and Atkinson Hyperlegible Mono font files
+here, organised one family per subdirectory:
+
+```
+fonts/
+  AtkinsonHyperlegibleNext/
+    AtkinsonHyperlegibleNext-*.ttf
+    AtkinsonHyperlegibleNext-*.ttf.license
+  AtkinsonHyperlegibleMono/
+    AtkinsonHyperlegibleMono-*.ttf
+    AtkinsonHyperlegibleMono-*.ttf.license
+```
+
+Sources:
+- https://www.brailleinstitute.org/freefont (Atkinson Hyperlegible Next + Mono)
+
+License: SIL Open Font License 1.1. Add a `.license` sidecar next to each
+binary file with:
+
+```
+SPDX-FileCopyrightText: 2024 Braille Institute of America, Inc.
+SPDX-License-Identifier: OFL-1.1
+```
+
+The build globs every `*.ttf`/`*.otf` under these subdirectories at configure
+time, so adding files later does not require editing CMake. If no fonts are
+present, the install step is skipped silently — `lookandfeel/contents/defaults`
+still requests the family, and the system falls back to whatever fontconfig
+resolves "Atkinson Hyperlegible Next" to (e.g. a distro package).

lookandfeel/contents/defaults

@@ -10,12 +10,17 @@ widgetStyle=Breeze
 [kdeglobals][General]
 ColorScheme=ShiftDark
 Name=Shift Dark
+font=Atkinson Hyperlegible Next,11,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
+fixed=Atkinson Hyperlegible Mono,11,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
+smallestReadableFont=Atkinson Hyperlegible Next,9,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
+toolBarFont=Atkinson Hyperlegible Next,11,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
+menuFont=Atkinson Hyperlegible Next,11,-1,5,400,0,0,0,0,0,0,0,0,0,0,1
 
 [kdeglobals][Icons]
 Theme=breeze-dark
 
 [plasmarc][Theme]
-name=default
+name=org.shift.desktoptheme
 
 [Wallpaper]
 Image=SHIFT