Chess piece assets: rasterized from DejaVu Sans Unicode chess glyphs (♔♕♖♗♘♙ / ♚♛♜♝♞♟).
DejaVu Fonts are distributed under a free/open font license.
PNG: 56x56 RGBA, optimized for the Vela JS <image> component.
BIN: LVGL v9 image binary, RGB565A8 (color format 0x14), 56x56, stride 112, uncompressed.
Vela JS official image src supports PNG/JPG, so the page code uses the PNG files; the BIN files are bundled for LVGL/native use.
