GL_INVALID_FRAMEBUFFER_OPERATION: Framebuffer is incomplete

Iam testing this awesome terminal on my Ubuntu 20.04. After getting a bit more familiar with the yarn, iam able to run hyper.

As i played around with themes and plugins i observed opacity is not supported and themes looks all not as proposed. So here is some output after starting my hyper in development mode.

yarn run v1.22.5
$ electron target
Plugin hyperpower (1.1.1) loaded.
Plugin hyperline (1.2.0) loaded.
Plugin an-old-hype (0.1.6) loaded.
Disabling Chromium GPU blacklist
running in dev mode
electron will open file:///home/nice/git/hyper/target/index.html
(node:389115) ExtensionLoadWarning: Warnings loading extension at /home/nice/.config/Hyper/extensions/fmkadmapgofadopljbjfkapdkoienihi: Unrecognized manifest key 'browser_action'. Unrecognized manifest key 'minimum_chrome_version'. Unrecognized manifest key 'update_url'. Cannot load extension with file or directory name metadata. Filenames starting with "" are reserved for use by the system.
(node:389115) ExtensionLoadWarning: Warnings loading extension at /home/nice/.config/Hyper/extensions/lmhkpmbekcpmknklioeibfkpmmfibljd: Unrecognized manifest key 'commands'. Unrecognized manifest key 'homepage_url'. Unrecognized manifest key 'page_action'. Unrecognized manifest key 'short_name'. Unrecognized manifest key 'update_url'. Permission 'notifications' is unknown or URL pattern is malformed. Permission 'contextMenus' is unknown or URL pattern is malformed. Permission 'tabs' is unknown or URL pattern is malformed. Cannot load extension with file or directory name metadata. Filenames starting with "" are reserved for use by the system.
Checking for notification messages
ignoring auto updates during dev
Notification messages fetch error SyntaxError: Unexpected token T in JSON at position 0
at JSON.parse ()
at /home/nice/git/hyper/target/node_modules/electron-fetch/lib/index.js:301:55
at processTicksAndRejections (internal/process/task_queues.js:97:5)
[389156:1124/083315.488107:ERROR:gl_utils.cc(316)] [.RendererMainThread-0xbcdbab40500] GL_INVALID_FRAMEBUFFER_OPERATION: Framebuffer is incomplete.
Checking for notification messages
ignoring auto updates during dev
Notification messages fetch error SyntaxError: Unexpected token T in JSON at position 0
at JSON.parse ()
at /home/nice/git/hyper/target/node_modules/electron-fetch/lib/index.js:301:55
at processTicksAndRejections (internal/process/task_queues.js:97:5)
[389156:1124/083558.430500:ERROR:gl_utils.cc(316)] [.RendererMainThread-0xbcdbab40500] GL_INVALID_FRAMEBUFFER_OPERATION: Framebuffer is incomplete.

ANy ideas to get this hyper full functional? :)

Reproduce the issue on Ubuntu 20.04 by running Electron in development mode and opening target/index.html. Start with the renderer output and the reported GL_INVALID_FRAMEBUFFER_OPERATION, then determine whether it causes the broken opacity and theme rendering. Done means the framebuffer error is resolved or explained and themes and opacity render as expected.