Corebird, a native GTK3 Twitter client, has reached 1.2.1 release with some fixes. Here are the changes according to its release page:

• Fix a11y labelling of several switches in the settings dialog
• Fix an input window clipping bug in the tweet info page
• Fix a few cases of overlapping widgets into window borders
• Remove the “Save as” context menu from inline media. This has not been working in a while but the context menu was still there.
• Rename the .sidebar style class to .topbar. This was used in corebird before gtk+ used it, but now that the sidebar is at the top, the .sidebar style from gtk+ themes collides with the horizontal alignment we use, so use the more fitting ‘.topbar’.
• Show a focus outline in the topbar again. We are setting a custom background color here, so we also need to set a fitting outline color.
• Fix a coloring but in the topbar, where wildcard selectors in themes would overrde our foreground color.

How to Install Corebird 1.2.1:

While the 16.04 universe repository provides the old Corebird 1.1 release, you can upgrade to version 1.2.1 via third-party PPA since there’s no official Linux installer.

Open terminal (Ctrl+Alt+T) and run the commands below one by one to add PPA and install corebird:

sudo add-apt-repository ppa:ubuntuhandbook1/corebird

sudo apt update

sudo apt install corebird

For those who don’t want to add PPA, grab the .deb installer from the link below:

Download Corebird (third-party .deb)

Select download:

• corebird_1.2.1-1~ubuntu16.04_amd64.deb for 64bit 16.04
• corebird_1.2.1-1~ubuntu16.04_i386.deb for 32bit 16.04

Then click install via Ubuntu Software, or by running command in terminal:

sudo dpkg -i ~/Downloads/PACKAGE_NAME; sudo apt-get -f install