Quote:
Originally Posted by LostHisMarbles
Greetings for starters 
As per title, looking for a viewer covering the following:
1) can run on MacOS (Tahoe)
2) allows for modifying character spacing
3) allows for modifying word(s) spacing
4) allows for modifying line spacing
5) has RGB/HEX configurable foreground (font) and background
Reading from Calibre's stock e-viewer is killing me. It allows for 1) and 5), naught on the rest; and for me mind, everything's too tight, cramped together and somehow way, way too sharp? Thick? Like.. semi-boldened fonts. I mean i use SF Pro Text everywhere, but it's never as "thick" or "pronounced" as it is on this e-viewer; nor as cramped. |
I'm not sure why you think calibre can't configure 2), 3) and 4) in the calibre Viewer.
It sounds like you've successfully done 5) to set foreground/background colours - presumably via the Viewer's
Preferences > Colors option.
To set 2), 3) and 4) you can use the Viewer's
Preferences > Styles option to use CSS to achieve whatever "look" suits you.. See the lower half of screenshot1 for an example. Screenshots 2 & 3 are Before & After, respectively. I'm definitely not suggesting screenshot3 is a "pleasing look"
so you'd need to tinker with the numeric values until you're happy.
ETA: I see @JSWolf kind of beat me to it! However, he's wrong about 2 & 3. You can do everything you want in the Viewer without needing to resort to the Editor.