Ah. Worth to mention: I changed the font to FiraCode:
Config.xml
<?xml version="1.0" encoding="UTF-8"?>
<FontEngine doc_version="0">
<Standard>
<Size>10,10</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Standard>
<StandardBig>
<Size>13,13</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</StandardBig>
<Bold>
<Size>10,10</Size>
<FileName>Fonts/FiraCode-Light.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Bold>
<Italic>
<Size>10,10</Size>
<FileName>Fonts/FiraCode-Medium.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Italic>
<Monospaced>
<Size>10,10</Size>
<FileName>Fonts/FiraCode-SemiBold.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Monospaced>
</FontEngine>
PatternConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<PatternFontSettings doc_version="0">
<Small>
<Size>9,9</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Small>
<Normal>
<Size>11,11</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Normal>
<Big>
<Size>13,13</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Big>
<Huge>
<Size>15,15</Size>
<FileName>Fonts/FiraCode-Regular.ttf</FileName>
<AntiAlias>YES</AntiAlias>
</Huge>
</PatternFontSettings>