Saturday, 4 November 2017

Increasing the font weight of side-loaded fonts without patching Nickel

Nickel - Kobo's e-reader operating system - only allows the user to increase the font weight of native fonts. It is possible to change the software to activate unsupported features, including the option to change font weight of side-loaded fonts, but this requires patching (see here for further details).

I personally prefer to avoid altering the software unless there is a necessity e.g. installing KOReader for better PDF support. However, similar to activating full screen reading and exporting annotations it is possible to change font weight without patching (the code does not activate the font weight scale). To set the font weight the following code needs to be added to eReader.conf (the file is located in .kobo\Kobo) in the [Reading] section:

readingFontWeight\Bookerly=0.20

The code above changes the weight of 'Bookerly' to 0.20 but the code can be changed to work with any side-loaded font. The weight can also be changed and it might be a good idea to test different weights before identifying what works best. It is also recommended to open and edit the file with Notepad++ to locate the right section to add the code.

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