As has already been suggested, install the Peter K. icon.library to correctly view NewIcons-format icons.
And for the love of god, get more memory! You know you need more memory. We know you need more memory. I do not understand why you are wasting so much time struggling with this and banging your head against a wall when simply adding more memory would solve 100% of your problems.
Well, maybe not 100%, but close to it, as far as your Amiga is concerned. 
I'll explain how I see the situation and how I feel about it.
I don't think there's any point me installing the Peter K. icon library, because I can already see some icons I need to click on, but also because I think this would use more RAM.
Of course, I need more RAM, but I can't get any for at least a few days. Also, I'm not sure what kind of RAM upgrade to get, because a MELcard could be with me on Wednesday or Thursday, while the new ACA 1221 may take some time, depending on how many people have pre ordered one. The ACA 1221 is totally superior to the MELcard, but there was only a prototype at the Amiga 30th event in Peterborough. It is supposed to be available on September 1, so there may be a disastrous announcement that it's not available on that date, or sold out, waiting for more stock. According to the Vesalia website, this accelerator has facilities which you have to pay extra after buying it to unlock!
While I'm waiting, I'd like to play at least a variety of games which will run in 2Mb on my Amiga A1200, otherwise I can only play them using WinUAE, which obviously doesn't feel the same at all. I'm also exploring the possibilities of using more Kickstart image files under Skick, which may enable me to run more ADF games from my Gotek drive.