So... out of 197 image files in the img folder, only 32 are used. 165 files can be removed. (I'm down to less than 200 MB on my PW1.. So these things help!

)
EDIT: Actually only 31, not 32, since shift key image is used twice. So, that means 166 files are redundant.
Maybe, it would more convenient to have the rotation setting in kterm.conf... if it's not too difficult to code..?
Kterm not starting with hidden keyboard? Maybe useful only rarely. Not a serious bug.