I would like to help with Krita’s Android user interface 
Where can I begin helping? I have some C++/Qt knowledge, and long experience with GNU/Linux. Thank you!
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Hello @nestorac, and welcome to the forum!
Thank you for your offer, I can imagine that your request may be of interest for some!
Usually, for questions like yours, a new topic to be created by yourself in our Development section would have been best, but okay, let us deal this way with it and see what our Android developer @Drawpile can tell you about this.
Additionally, I’ll ask our administration team to cut this out of this topic to create a new one from it.
Please wait till @Drawpile will turn to you, and don’t feel bad about choosing the wrong way to ask your question, you are new here and such things can happen!
We will take care of this.
In between, you should make yourself familiar with our forum manners and structure.
For instance, our category system, it had guided you to better categories to ask, instead of hijacking a topic which only by chance has “Android” in its headline. 
Therefore, I quote a template on this that I once created to describe how you can find your way through our categories, and maybe profit from that, because by choosing the right categories you may get help earlier from those who know about the topic you ask in. If you ask in the wrong categories, you address the wrong audience for the issue you need support in:
To choose the right categories, every main category has a short description what its dedication is, and additionally you will find a description in every category, these are named after the following scheme:
About the XYZ category, for instance, About the Development news category, which will help you to reduce the amount of maintenance work needed to keep this forum tidy.As this screenshot proves:
Here as text-copy:
Develop
Your code is your artwork. Want to help Krita developers improve Krita. Post here to discuss the features and improvements. Gather feedback from fellow devs and the artists. Collecting use cases and feedback helps a lot in development.
Please be so kind to obey this for your new future posts and especially for creating own topics, it will reduce the amount of maintenance work for the forum and would help us a lot.
Thank you very much!
If you want to inform yourself about our forum and its rules, you may be interested in these topics:
https://krita-artists.org/about
https://krita-artists.org/guidelines
@raghukamath / @sooz / @Takiro / @tiar: Would you be so kind to cut out the above posting from @nestorac as well as mine out of this topic and create a new one for it in a better suited category, probably in the Development Section, for instance?
Thank you!
Michelist
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You can start by building Krita: Building Krita for Android — Krita Manual 5.2.0 documentation
And then like was said, you can just grab something reasonably simple to get to grips with it. One thing I can think of UI-wise that isn’t an enormous task would be the issue in the brush editor where when you click on the title edit button, it makes the dialog wider than it needs to be. This is probably just the typical Qt issue where switching out UI needs to be done by hiding the old controls and then showing the new ones afterwards. Not exactly Android-specific, but it’s something that is particularly annoying there because it often pushes the dialog off-screen.
For further questions and such, don’t continue the thread here though, it makes more sense to come into IRC (#krita on libera.chat) or Matrix (#krita on KDE). That stuff usually involves a lot of smaller messages, which the forum format is not suited well.
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Welcome to the forum, @nestorac and for offering to help the Krita team.
I placed your question in its own thread for you and others to continue the conversation.
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Welcome to the community. Thank you for your interest in collaborating with Krita. Good luck with the development and may you achieve great things for everyone!
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Thank you so much for your kind welcome! I must apologize for the inconvinience, I have read everything and will ask you in Matrix chat (which is new for me). I build Krita and I try to fix the button.
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