The default theme in knoppix should be Keramik IMHO.. it will be the default in 3.1
see it here and find .debs on the kde3 debian info page..
Intel Core i7-8700 (SR3QS) 3.2GHz LGA1151 Desktop CPU Processor
$80.00
AMD Ryzen 7 7800X3D 8-Core - 16-Thread 4.2 GHz (5.0 GHz Max Boost) Socket AM5
$324.99
AMD Ryzen 9 7900X3D Gaming Processor - 12 Core And 24 Threads
$449.00
Intel - Core i5-12600K Desktop Processor 10 (6P+4E) Cores up to 4.9 GHz Unloc...
$174.99
Intel - Core i7-12700K Desktop Processor 12 (8P+4E) Cores up to 5.0 GHz Unloc...
$249.99
Intel Core i5-6500 SR2L6 3.20Ghz LGA 1151 Desktop CPU Processor *TESTED*
$23.50
Intel Core i5-8500 8th Gen Coffee Lake 6-Core 3.0 GHz LGA 1151 65w Desktop CPU
$39.95
Intel Core i7 7700 SR338 Socket LGA 1151 3.6GHz Quad Core CPU Processor A++
$69.90
Intel Core i5-12600K Processor (4.9 GHz, 10 Cores, FCLGA1700)
$150.00
Matched pair Intel Xeon E5-2667v4 SR2P5 3.20GHz, 8 core, 25MB Processors LGA2011
$62.95