v1.3.4-b2

New

• Update channel selector — Stable / Beta / Alpha, under Misc → Updates
• In-panel update checker: installed version, status, check, and install
• Mouse buttons bindable in the Key Viewer (LMB / RMB)
• Key rain corner radius, applied to its shadow too
• Key rain glow layer — size plus a tint that multiplies the rain color
• Preset editor regrouped into cards: Background, Border, Label Text, Count Text, Key Rain, Ghost Keys — each one toggleable

Improvements

• Key Viewer symbol labels (Tab, Space, Enter, Shift) render at the right size and centered — bundled symbol font instead of borrowing glyphs from the game's
• Space shows ⎵
• Update check reads the GitHub releases list, so a channel picks the newest build it allows
• Switching to a lower channel offers that channel's newest build, even when it is older than what is installed
• Key rebinding accepts every keyboard key (Menu, keypad, F13–F24, Print, Pause…)
• Escape leaves a pending rebind; clicking the armed key cancels it
• Rounded rain keeps its cap through the fade zone instead of squaring off early
• Long setting labels shrink to fit instead of overlapping their control
• Deleting a row or cell now asks for confirmation
• Update check no longer prompts on every launch on prerelease builds