All text types in QUL could support the font.letterSpacing property that already exists in Qt to provide more advanced control over the look of text.
This is important for designer, especially when importing a design from Photoshop or other design tools using Qt Bridge. The Bridge makes use of this property to replicate text appearance in QML as close as possible to the original design, but it currently skip it for MCU projects since QUL doesn't support it. This leads to QML UIs not looking exactly the same.

MCU side is done and will be released on Qt for MCU 2.11