[TASK] Improve information in Readme

Get relevant information before download
[TASK] Set regular file mode on font resources
[TASK] Adjust positioning and spacings for uniformity
[TASK] Adjust colours

* Avoids the use of #000 which is generally discouraged as background colour
* Adjusts colours of borders and backgrounds to reach uniformity
* Overrides colours of various backgrounds to transparent
[DOC] Update screenshot and modestly extend README.md