Unicyclesynced Ani-18 plymouth theme is a modern boot theme with nice loading animation (preview doesn't show much of it really) that can be virtually used in any distro - its logo has been designed with intent of bringing various Linux distros a bit closer, but you may use it also if it suits you in another way =)
A note after I thought: Unicyclesynced doesn't relate to unicycles, it refers more to such thing as universal cycles

This theme can be obtained from my Gumroad store site (it's a good one):
Unicyclesynced Ani-18 Dark Gray - https://audiovisart.gumroad.com/l/rctgwy
Unicyclesynced Ani-18 Torquoise - https://audiovisart.gumroad.com/l/yfjwg
Unicyclesynced Ani-18 Light Gray Darker - https://audiovisart.gumroad.com/l/erboz

Don't be shy, give it a try, hesitation isn't good for you when it comes to that type of goodies, trust me, I'm your best advisor :-), there should be no harm in that. I believe it's quite easy to download it and to do something with that (well, perhaps relatively, it may depend on the item), after all what have you got to lose? I'm simply incenting you to have a go, it's good to evaluate it potentially.

Kindly be aware that this is NOT A COMMERCIAL product but we attempt to create close to pro like items (if such approximation is approachable) hence we expect/ask you for a resource access contribution to aid us cover few costs associated with producing quality resources, we need to carry. Many thanks for considering, and we foresee, acting to support us, we hope it's not too over you, it's not much we ask for but it will make a difference to us, our pack of buddies, ya know.

If using Ubunt/Mint and it's not displaying, do "sudo apt-get install plymouth-themes" with update-initramfs, etc. after

PS. I've just noticed that on some displays on preview it looks like logo isn't centered but it is so on the bootsplash, awa if you zoom the preview, you'll also see this.

DISCLAIMER
This software/resource is provided "as is" without warranty of any kind, either expressed or implied and such software is to be used at your own risk. While it was created taking many aspects and factors in mind, the use of this software/resource is done at your own discretion and risk and with agreement that you will be solely responsible for any damage to your computer system or loss of data that results from such activities. No advice or information, whether oral or written, obtained by you from us shall create any warranty for the software/resource. Additionally, we make no warranty that: (a) This software/resource will meet your requirements, (b) This software/resource will be uninterrupted, timely, secure or error-free, (c) The results from the use of this software/resource will be effective, accurate or reliable, (d) The quality of this software/resource will meet your expectations, (e) If errors or problems occur in connection with a download of this software/resource obtained from the links on this website, they will be corrected.

IMPORTANT NOTE: If you voted out of favour because you had a bad day or acted upon feeling like a spoiled toddler, be aware that I consider it as indeed very immature and silly. On contrary, if you liked what you got, definitely feel free to vote + and possibly point others to the product site, you will actually do well if you do this, unlike most who in fact can't do anything else than express negativity because they think it matters.