implements PLN-0072

crates/console/prometeu-drivers/src/hardware.rs

@@ -22,7 +22,7 @@ use std::sync::Arc;
 ///
 /// ### Console Specifications:
 /// - **Resolution**: 480x270 (16:9 Aspect Ratio).
-/// - **Color Depth**: RGB565 (16-bit).
+/// - **Color Format**: RGBA8888.
 /// - **Audio**: Stereo, Command-based mixing.
 /// - **Input**: 12-button Digital Gamepad + Absolute Touch/Mouse.
 pub struct Hardware {

crates/console/prometeu-system/src/services/vm_runtime/tests.rs

@@ -648,7 +648,7 @@ fn tick_draw_text_survives_no_scene_frame_path() {
     let mut vm = VirtualMachine::default();
     let signals = InputSignals::default();
     let code = assemble(
-        "PUSH_I32 0\nPUSH_I32 0\nPUSH_CONST 0\nPUSH_I32 65535\nHOSTCALL 0\nFRAME_SYNC\nHALT",
+        "PUSH_I32 0\nPUSH_I32 0\nPUSH_CONST 0\nPUSH_I32 287454020\nHOSTCALL 0\nFRAME_SYNC\nHALT",
     )
     .expect("assemble");
     let program = serialized_single_function_module_with_consts(
@@ -682,7 +682,7 @@ fn tick_draw_text_survives_no_scene_frame_path() {
 
     assert!(report.is_none(), "no-scene overlay text must not crash");
     hardware.gfx.present();
-    assert_eq!(hardware.gfx.front_buffer()[0], Color::WHITE.raw());
+    assert_eq!(hardware.gfx.front_buffer()[0], Color::from_raw(0x11223344).raw());
 }
 
 #[test]

crates/tools/pbxgen-stress/src/lib.rs

@@ -43,7 +43,7 @@ pub fn generate() -> Result<()> {
     let syscalls = vec![
         SyscallDecl {
             module: "gfx".into(),
-            name: "clear_565".into(),
+            name: "clear".into(),
             version: 1,
             arg_slots: 1,
             ret_slots: 0,

discussion/index.ndjson

@@ -35,4 +35,4 @@
 {"type":"discussion","id":"DSC-0032","status":"done","ticket":"system-os-lifecycle-process-task-contract","title":"Agenda - SystemOS Lifecycle, Process and Task Contract","created_at":"2026-05-14","updated_at":"2026-05-15","tags":["runtime","os","lifecycle","process","task","shell","firmware"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0041","file":"discussion/lessons/DSC-0032-system-os-lifecycle-process-task-contract/LSN-0041-systemos-lifecycle-authority.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0033","status":"done","ticket":"system-os-service-ownership-and-module-layout","title":"Agenda - SystemOS Service Ownership and Module Layout","created_at":"2026-05-14","updated_at":"2026-05-15","tags":["runtime","os","services","module-layout","vm","window-manager","logging"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0042","file":"discussion/lessons/DSC-0033-system-os-service-ownership-and-module-layout/LSN-0042-systemos-service-ownership-boundary.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0036","status":"done","ticket":"prometeu-hub-ui-direction","title":"Agenda - Prometeu Hub UI Direction","created_at":"2026-05-15","updated_at":"2026-05-22","tags":["hub","ui","shell","system-apps","lifecycle","design-system"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0045","file":"discussion/lessons/DSC-0036-prometeu-hub-ui-direction/LSN-0045-hub-ui-slices-should-prove-os-boundaries.md","status":"done","created_at":"2026-05-22","updated_at":"2026-05-22"}]}
-{"type":"discussion","id":"DSC-0037","status":"in_progress","ticket":"rgba8888-framebuffer-and-pixel-format-direction","title":"Agenda - RGBA8888 Framebuffer and Pixel Format Direction","created_at":"2026-05-22","updated_at":"2026-05-23","tags":["gfx","framebuffer","rgb565","rgba8888","renderer","assets","host","backend"],"agendas":[{"id":"AGD-0037","file":"AGD-0037-rgba8888-framebuffer-and-pixel-format-direction.md","status":"accepted","created_at":"2026-05-22","updated_at":"2026-05-23"}],"decisions":[{"id":"DEC-0029","file":"DEC-0029-rgba8888-runtime-pixel-format-contract.md","status":"accepted","created_at":"2026-05-23","updated_at":"2026-05-23","ref_agenda":"AGD-0037"}],"plans":[{"id":"PLN-0067","file":"PLN-0067-rgba8888-published-contracts-and-specs.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0068","file":"PLN-0068-rgba8888-color-type-hal-and-abi-surface.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0069","file":"PLN-0069-rgba8888-cpu-renderer-and-composition.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0070","file":"PLN-0070-rgba8888-asset-palettes-tooling-and-fixtures.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0071","file":"PLN-0071-rgba8888-host-presentation-path.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0072","file":"PLN-0072-rgba8888-residue-removal-and-end-to-end-validation.md","status":"open","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0037","status":"in_progress","ticket":"rgba8888-framebuffer-and-pixel-format-direction","title":"Agenda - RGBA8888 Framebuffer and Pixel Format Direction","created_at":"2026-05-22","updated_at":"2026-05-23","tags":["gfx","framebuffer","rgb565","rgba8888","renderer","assets","host","backend"],"agendas":[{"id":"AGD-0037","file":"AGD-0037-rgba8888-framebuffer-and-pixel-format-direction.md","status":"accepted","created_at":"2026-05-22","updated_at":"2026-05-23"}],"decisions":[{"id":"DEC-0029","file":"DEC-0029-rgba8888-runtime-pixel-format-contract.md","status":"accepted","created_at":"2026-05-23","updated_at":"2026-05-23","ref_agenda":"AGD-0037"}],"plans":[{"id":"PLN-0067","file":"PLN-0067-rgba8888-published-contracts-and-specs.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0068","file":"PLN-0068-rgba8888-color-type-hal-and-abi-surface.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0069","file":"PLN-0069-rgba8888-cpu-renderer-and-composition.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0070","file":"PLN-0070-rgba8888-asset-palettes-tooling-and-fixtures.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0071","file":"PLN-0071-rgba8888-host-presentation-path.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]},{"id":"PLN-0072","file":"PLN-0072-rgba8888-residue-removal-and-end-to-end-validation.md","status":"done","created_at":"2026-05-23","updated_at":"2026-05-23","ref_decisions":["DEC-0029"]}],"lessons":[]}

discussion/workflow/plans/PLN-0072-rgba8888-residue-removal-and-end-to-end-validation.md

@@ -2,7 +2,7 @@
 id: PLN-0072
 ticket: rgba8888-framebuffer-and-pixel-format-direction
 title: RGBA8888 Residue Removal and End to End Validation
-status: open
+status: done
 created: 2026-05-23
 ref_decisions: [DEC-0029]
 tags: [gfx, framebuffer, rgb565, rgba8888, renderer, assets, host, backend]
@@ -107,3 +107,13 @@ Included:
   contract.
 - End-to-end visual validation may not exist yet. If so, record the gap and add
   minimal deterministic checks around RGBA channel order and alpha behavior.
+
+## Validation Evidence
+
+- `cargo check --workspace` passed.
+- `cargo test --workspace` passed.
+- `discussion validate` passed.
+- Residue scan command:
+  `rg -n "RGB565|rgb565|Gfx.*565|clear_565|_565|draw_rgb565|0x1010|front_buffer\\(\\).*u16|Vec<u16>|\\[u16\\]|GLYPH_BANK_PALETTE.*u16|size_of::<u16>|from_rgb565|to_rgb565" crates docs -S`
+- Remaining scan hits are either negative normative documentation or unrelated
+  `u16` uses such as VM verifier instruction offsets / glyph ids.