Thank you for the response. I'll try to check on the FireDAC Units. I did find a similar problem here but the suggestion of turn off the theme doesn't seem to work from my end and the icons are really looking ugly :
I'm been trying to look for options on creating Delphi REST solution and I think MARS is a good option. I wanted to try it but I only have a Delphi 10.3 Community Edition. I was able to Build All but during the installation part of CoreDesign and FireDACDesign it does not respond. Is there something wrong or I really need a higher licensed or Architect license for MARS to work in my machine? Thank you.