I have never asked a question in an online forum before, but a few years of reading them have emboldened me, so here goes.
I'm running Ubuntu 14.04. While in the Unity "Keyboard" app, "Shortcuts" tab, "Universal Access" group, I changed "Increase text size" from "Disabled" to "Shift+Ctrl+>" and "Decrease text size" to "Shift+Ctrl+<". I tried the ">" shortcut and the text size did increase. However, I later decided to revert back to the smaller text, and could not. Neither shortcut worked anymore.
I searched online and found several possible solutions, neither of which has worked:
As per one suggestion here, I tried
~$ rm -rf .gconf/followed by a reboot. Alas, when it failed I noticed the negative score on the suggestion. Doh! Newbie error. Other than failing, no obvious ill effects. (A new .gconf directory has been created, and it no longer has a desktop subdirectory, which is where my changes to the default would have gone, I believe, so I think this is all as would be expected?)
As per this post, I installed and ran
~$ unity-tweak-tool --reset-unity. This ran successfully (only when I switched to Python 3 BTW), but did not restore the text size.
I understand from elsewhere that there is a history to how configurations are handled in Unity, along the lines of gconf vs dconf etc. While my immediate concern is an answer to the above problem, I will appreciate any feedback, links etc. of a more general educational nature, on this or virtually any topic related to open sourcing.