Quote:
Originally Posted by jackie_w
I think you've said in the past that you don't patch. I suspect this is probably why you don't see the problem with the built-in fonts. I wouldn't be surprised if this is why Kobo have set their default minimum line spacing as large as they have. I think it's 1.0 (1.0 whats, I don't know). The minimum after patching is 0.75 (although this is user-configurable).
There are definitely 'toxic combinations' of font-family/font-size/line-height. For example, I was able to recreate haydnfan's massive whitespace at the bottom of many pages (even in a kepub), by adjusting font-size for Avenir at minimum (patched) line spacing. It's also quite easy to get cut-off last lines with Georgia plus very small line spacing.
If you patch line spacing, to get a 'good' result, you just need to be a bit flexible with your settings.
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No, I don't patch, so if this is an issue when people have been playing with the firmware like this, then I don't consider it a bug. Hopefully Kobo have tuned things to the best way. Plus, pushing the line spacing down like this could be hitting problems with small line heights in the actual fonts.
From memory, Kobo's line spacing is a multiplier. I think that effectively means the number is in em units. I know it was discussed a long time ago. I think it was one of the reasons I created the Kobo Utilities plugin - so I could fiddle with the font settings.