A little bit of work but you can do it on your own. It's not that hard.
All the images from a imported sensor panels are located here. C:\Program Files (x86)\AIDA64\SensorPanel
Search after "white 1080p.jpg" The background image. Open it with a graphic program and invert it via "invert colors" and save it under the same name or as a duplicate. You could use a free online software or download a free trial version. Gimp, PaintNet etc.
Hide the background image in Aida64 via the sensorpanel manager. Change the colors of all sensors from black to white via the "Modify" button.
To change every label at once, mark all "text" labels manually from the list and then click on "Modify" of one of the labels. If you change the color of one label, everything changes after confirming it with "OK".
For the sensors it similar but not all sensor can be change all at once. Some of them are different, so you need to edit many of them manually one by one. If the sensors are of a similar type, you can edit several at once. This saves a lot of time. Just look at the symbol in the list, if it's similar you can manually mark them all and edit at once.
And the last step is to change the gauge graphics. There are 15 of them in the sensorpanel folder. Aida64 sensorpanel manager. All are under the section of Type: "custom" There are 15 graphis linked under "States" via "..."
Convert them via "invert colors" and save them as again as transparent .png with a alpha channel. Maybe you need to re-adress the gauge graphics but maybe not and if you load the sensor panel again the new inverted graphics will be loaded.
If it is not working this way, you have to reset the gauge meter and all graphics files linked. Change the option under Type: "custom" to white or black, it doenst matter. Click OK. It resets the path of all the linked gauge images to the aida standard gauge. Open the dialog of this sensor again and change it back to "custom". Now ad all 15 graphics back as shown there: State #1 = image 01. It depends and how many he made. You can check hown many he made in the folder. Sometimes they use 16 images but mostly 15 images.
hide background image (makes it easier to work in the panel with a neutral background)
edit labels
edit sensors
edit gauge images
change the background image with the inverted colored image
save the panel and give it a new file name