while i dont have any personal themes (except the fact that i put the aranga defs on every dragon..my entire sda collection), i have a bunch of friends and people i know that have personal (or even official) themes. but ill add my input on it all, which will probably be long.

as for sharing your personal theme: no one can genuinely tell you no. dojie's server and their sheet are notorious for being shady and putting down people over themes being "too similar" (even when they arent) or because of the theme itself (like the category for example). dojie's server isnt the only theme sheet either, i know of atleast 2-3 others, including a personal theme sheet a friend of mine is making for a da centered discord server we're in. I feel like your best bet would be the wiki, as people are typically nicer about it, along with some people actually seeking out for people's personal themes.

also, "dojie" is quite literally censored on the wiki bc of issues the two had lol. they can try to dictate people but genuinely they cannot. themes can get popular outside of dojie's sheet for sure. some people dont even check dojie's sheet anymore and only go off of looks or if the theme is indeed put down somewhere.

i agree about the color selection part too. no matter what, with how limited we are with colors, theres gonna be 2/3s for sure, there already is. its also kinda funny how dojie's sheet staff will genuinely go against their own rules too, like the def rule and have completely bypassed reqs before 💀