SPDX license update

shaders/ui-circles.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_KHR_shader_subgroup_basic : enable

shaders/ui-fused.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_KHR_shader_subgroup_basic : enable

shaders/ui-images.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_KHR_shader_subgroup_basic : enable

shaders/ui-quads.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_KHR_shader_subgroup_basic : enable

shaders/ui-shared.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 // Crafter.Graphics UI shader contract — shared by every standard UI compute
 // shader and intended to be #included by user-authored shaders that want to
 // dispatch alongside them. Layouts here are FROZEN: only additive changes

shaders/ui-text.comp.glsl

@@ -1,3 +1,6 @@
+//SPDX-License-Identifier: LGPL-3.0-only
+//SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+
 #version 460
 #extension GL_GOOGLE_include_directive : enable
 #extension GL_KHR_shader_subgroup_basic : enable