You can customize your instance of Integrify with your own custom logos. One will be used for above the left navigation as well as the login screen. The second logo file will be used in the left navigation when it is collapsed.
The main logo should be 145 pixels wide by 30 pixel high and save as a png file. The narrow logo should be 30 pixels wide and 25 pixels high. You can use large or smaller files from a pixel perspective, but you must keep the pixel ratios the same (290x60 looks best in the login screen).
The names of the files are also important. You can name your main logo file whatever you want. The second logo file must be the same as the main logo file, but with -narrow at the end.
example: companylogo.png and companylogo-narrow.png
The last requirement is that the files be accessible by the integrify server and browser clients. For example, You can place the two files in the integrify\app\webserver\static directory on your Integrify application server(s).
When assigning the logo in the System Settings -> System Config, use the location of the main logo file. For example, if you named the files like the above example, placed the files in the integrify\app\webserver\static directory on your Integrify application server(s), and your site is SSL enabled, you would use https://yoursite.yourcompany.com/companylogo.png.