Default [HELP] Twrp problems.

Well, it so happened that I was on omni rom 4 3.1 with cocore kernel twrp recovery and I saw in a thread that we can theme our recovery by adding a ui.zip file in the theme folder of twrp. Ever since then, my phone boots in recovery only (without the three button combination). Plus in twrp, the theme is applied but I get a super zoomed view of the recovery so I can't restore nandroid as well. Of course, I used my last resort and brought back my phone to stock through odin but the problem is what did I do wrong and what should I take care of to prevent this sort of **** from happening in the future?

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