# Effect on the five port screens of naming RATC children from the `opt `
# block. 2026-08-29. `sylpheed-cli screen render --build N GP_TITLE.pak`,
# before vs after the ratc.rs change. The newly-resolved element is the
# full-resolution background (pteff04.t32 on the title, pteff05.t32 on the
# menus), which the old name `8AX` hid.

build  screen           mean brightness      high-frequency detail
  4    title             72.77 ->  72.81     8.722 -> 10.062  x1.15   pixels changed >2: 30.0%
  5    main menu (JP)    42.73 ->  42.74     3.978 ->  5.051  x1.27   pixels changed >2: 20.0%
  6    EXTRAS (JP)       44.08 ->  44.09     3.953 ->  5.025  x1.27   pixels changed >2: 19.4%
  8    main menu         41.57 ->  41.58     3.830 ->  4.970  x1.30   pixels changed >2: 21.0%
  9    EXTRAS            42.99 ->  43.00     3.867 ->  5.000  x1.29   pixels changed >2: 20.2%

# Brightness unmoved, detail up ~a quarter = the same artwork at twice the
# resolution replacing a 2x upscale. New CONTENT would move the mean.

# Covering check: the background is opaque and full-screen and paints 4th
# of 16 on the menu, so it could hide what follows. Standard deviation
# inside each element's resting rect (build 8), before vs after:
  ptbtn01    sd  59.98 ->  60.03
  ptbtn03    sd  63.40 ->  63.45
  ptbtn05    sd  66.54 ->  66.58
  ptframe1   sd  51.16 ->  51.20
  ptmsg      sd  56.11 ->  56.12
  loop-area  sd  50.99 ->  51.04
# Nothing is covered.