First press escape then the following:
lowercase uppercase
rred text red graphicsR
ggreen text green graphicsG
yyellow text yellow graphicsY
bblue text blue graphicsB
mmagenta text magenta graphicsM
ccyan text cyan graphicsC
wwhite text white graphicsW
dnormal height double heightD
fsteady flashF
hrelease graphics hold graphicsH
iinsert row delete rowI
nblack background new backgroundN
qhide codes show codesQ
scontiguous graphics separated graphicsS
vreveal off reveal onV
xno grid gridX
zredraw screen clear screenZ
[narrower screen wider screen]
Oconceal insert block char.J
Uduplicate row switch char. sets1-8
0hide status bar
Eexport frametoggle metadataL
aignore black fg allow black fgA
kblack text black graphicsK
No escape required for:
TABinsert space delete characterBS
In graphics mode:
QWASZXRCF/keypadsubpixel twiddling
Bug reports and pull requests welcome.
The frame's data is all in the address bar.
To save or share, bookmark/email/etc the URL.