Any idea to remove number over the folder..

Yes, it is possible, but it doesn't work very well in practice.

The colours are created from 4 pairs of hex keys. From White through to black, but transparency can be achieved by using 4 hex pairs and not 3. The 4th pair make the transparency I think. Each hex key contains 6 - 8 characters (3 - 4 pairs), like this example from ambience creation;

"primaryColor" : "#FFFFFFFF","secondaryColor" : "#00000099", (zeroes)

#FFFFFFFF produces white, #00000099 does indeed produce transparency, but then other elements are also transparent.

The 4 elements of 'ambience'; (Jaakko Roppola of Jolla)

• primaryColor Completely desaturated colour for high contrast, Indicates something is interactive (although exceptions exist for legibility purposes)

• highlightColor bright colour for indicating selected, activated, or something that's not interactive (yes, semantically strangely named)

• highlightBackgroundColor more saturated colour for press effects and background geometries

• highlightDimmerColor strongly desaturated colour for dimming things

To find out which element controls the colour of the numbers on folders, we need to use Terminal and 'dconf' tool/commands, like this;

dconf write /desktop/jolla/theme/color/primary "'#00000099'" will turn the folder numbers transparent, but then app name text, the time and text on covers turns transparent, you can not affect one without affecting the other.

Appearances made by using dconf commands is only temporary, once you swap to another ambience, any changes made by dconf are lost. I don't think this is the way around this particular problem/question. A patch for patchmanager would be better, something that masks the centre of the folders perhaps - I don;t know enough about writing a patch, yet. But others here are very knowledgeable and may take requests..?

Hope this gives you a rough idea.

Regards,