Some sentences do not need to be marked as translatable.

[ghost]

I'm not 100% sure but in my opinion, we don't need to mark as translatable these sentences.

These sentences have taken from MyPaint 2.x master branch.

#. TRANSLATORS: footer icon tooltip markup for the current mode
#. TRANSLATORS: tooltip for the layer mode dropdown (markup)
#: ../gui/drawwindow.py:106 ../gui/layerswindow.py:81
#, python-brace-format
msgid ""
"<b>{name}</b>\n"
"{description}"
msgstr ""
"<b>{name}</b>\n"
"{description}"

#. TRANSLATORS: window title for use with a filename
#: ../gui/drawwindow.py:298
#, python-format
msgid "%s - MyPaint"
msgstr "%s - MyPaint"

#. TRANSLATORS: window title for use without a filename
#: ../gui/drawwindow.py:301 ../po/tmp/mypaint.glade.h:1
msgid "MyPaint"
msgstr "MyPaint"

#: ../gui/footer.py:191
#, python-brace-format
msgctxt "current brush indicator: tooltip (no-description case)"
msgid "<b>{brush_name}</b>"
msgstr "<b>{brush_name}</b>"

#: ../gui/footer.py:196
#, python-brace-format
msgctxt "current brush indicator: tooltip (description case)"
msgid ""
"<b>{brush_name}</b>\n"
"{brush_desc}"
msgstr ""
"<b>{brush_name}</b>\n"
"{brush_desc}"

#: ../gui/layers.py:990
#, python-brace-format
msgctxt "Layers dockable: markup for a layer with no description"
msgid "{layer_name}"
msgstr "{layer_name}"

#: ../gui/layers.py:995
#, python-brace-format
msgctxt "Layers dockable: markup for a layer with a description"
msgid ""
"<span size=\"smaller\">{layer_name}\n"
"<span size=\"smaller\" alpha=\"50%\">{layer_description}</span></span>"
msgstr ""
"<span size=\"smaller\">{layer_name}\n"
"<span size=\"smaller\" alpha=\"50%\">{layer_description}</span></span>"

# fuzzy: çevirmeye gerek yok
#: ../gui/layervis.py:53
#, python-brace-format
msgctxt "view controls: dropdown: item markup"
msgid "<i>{builtin_view_name}</i>"
msgstr "<i>{builtin_view_name}</i>"

#: ../gui/layervis.py:125
#, python-brace-format
msgctxt "view controls: dropdown: item markup"
msgid "{user_chosen_view_name}"
msgstr "{user_chosen_view_name}"

#: ../gui/optionspanel.py:58
#, python-brace-format
msgctxt "options panel: header"
msgid "<b>{mode_name}</b>"
msgstr "<b>{mode_name}</b>"

#: ../gui/topbar.py:91
msgid "<b>MyPaint</b>"
msgstr "<b>MyPaint</b>"

#: ../lib/naming.py:22
#, python-brace-format
msgctxt "unique names: serial number needed: template"
msgid "{name} {number}"
msgstr "{name} {number}"

#: ../lib/naming.py:29
msgctxt "unique names: regex matching a string with a serial number"
msgid "^(?P<name>.*?)\\s+(?P<number>\\d+)$"
msgstr "^(?P<name>.*?)\\s+(?P<number>\\d+)$"

#: ../po/tmp/brusheditor.glade.h:39
msgid "{tooltip}"
msgstr "{tooltip}"

#. field name (template)
#: ../po/tmp/brusheditor.glade.h:41
msgid "{dname}:"
msgstr "{dname}:"

[don570]

In graphics programs there are some effects like filters that are untranslatable or aren't worth
translating such as an effect that is named after a person's name.
An example 'Bokeh' is now very common term in graphics apps...
https://en.wikipedia.org/wiki/Bokeh
Gaussian blur is another term

[tjhietala]

There's nothing inherently untranslatable about 'Gaussian blur' or 'bokeh'. The choice of translating or not translating should be left to the translators of each language.

[jplloyd]

Some of these do seem redundant, but for the ones with two parts/sections I could see the potential necessity of letting translators reorder components by the convention of their language (right-to-left languages in particular, I guess). I am no i18n expert, but that seems like one reason to keep those.

[jplloyd]

Based on my (admittedly limited) understanding of doing i18n for rtl scripts, it seems most of these instances do need to be marked as translatable. The only one I cannot see any reason for is {tooltip} (notice the colon in the {dname} instance), but seeing as most languages will just copy these verbatim (if we want to keep track of completion) or leave them empty, I think we can overlook that one.