Unfortunately, there is no designated place from where you can download icons for the tiles. You can use your own custom images as long as they fit the 61.45 x 73 pixels ratio.
If you need more help, have further questions, or just want to chat about this topic, please don't hesitate to reach out.
@simonamirza thank you for the informatio on icons - this is helpful with the upgrade of our on prem server.
@simonamirza whats the size of the image on the left? please see image attached
@simonamirza Secondly, is it possible to replace the phrase "Welcome to Sysaid" with our company's name, for example, "Company Service Desk," and use a transparent logo as the background?