Goverlay 2.0.0 RC1

Hello Linux Gamers !

This is the first RC for 2.0 Goverlay release, i want this release to be special, so it will took a little more time in the oven. I still can't believe that there's already 6 years since the original goverlay release. Since Mangohud by @flightlessmango started it all, i wanted to give a fresh paint to it's UI, making it more modern and cool. Here are the highlights:

UI Overhaul

• Interactive Layout Tools: Redesigned Mangohud tabs
• Modernized 2.0 Interface: Redesigned and modernized cards across all the UI
• Modular Component Setup: Added a first-run Component Setup so the user can download only the wanted modules (yes, i heard you)

New features

• vkNemu Integration: Added vkNemu Vulkan layer, vknemu is a opensource reimplementation of Radeon Chill, created by @reakjra (vkSumi). Another special thanks for you !

• DLSS-NR Support: Added DLSS-NR upscaler integration, RDNA4 / RDNA3 detection. Models by @mochizuki0323 and @mauri870
• HelixSR Support: Added HelixSR upscaling with embedded compilation flow. Special thanks for the author @lonewolf0622 for the support

• PasPlot Benchmark Viewer: Added native MangoHud CSV benchmark viewer with KPI cards, per-game log organization

PasCube

• PasCube: Modernized benchmark visuals, floor reflections, dynamic hardware introspection, and a redesigned multi-slide community insights carousel (hardware-isolated deltas across distros/drivers/kernels and silicon lottery binning).

Upscalers & Frame Generation

• OptiScaler & FSR 4: Added custom FSR 4 build import (#447), migrated bleeding-edge to official OptiScaler nightlies, and prevented upscaler profile leakage across games.
• MAKO & AFMF: Added MAKO 4.6, fixed AFMF log/block SAD syntax and fixed lsfg-vk download
• lsfg-vk Fixed lsfg-vk download (intentionaly broken by the author)
• vkSumi (Color Grading): Renamed the tab to Color Grading and added automatic startup download/updates.
• MangoHud Improvements: Added real-time blacklist synchronization (#448), restored load color gradients and hardened hex color parsing (#363).

Games, Tweaks & Fixes

• Games & Covers: Improved non-Steam cover discovery, added custom cover URL actions, and persisted custom covers across restarts (#446).
• Tweaks: Split launch arguments into a dedicated Arguments sub-tab.
• Flatpak & Core Fixes: Fixed ReShade/DLSS-NR/Vulkan layer paths, vkBasalt/vkSumi/splash behavior on Flatpak & Bazzite, Intel CPU power dialog loop (#436), safe bgmod leftover cleanup & launcher handling (#445), POSIX quoting for paths with apostrophes (#441), centralized diagnostic logs, and downgrade protection for runtime updates.
• Codebase Cleanup: Purged legacy UI containers, orphaned fields, and dead stubs.