Thank you for the feedback and kind words!!
-This is a really good suggestion! initially when playtesting we had an actual timer, but we ended up discarding it to make things more interesting (and making the player have to rely on their internal estimations, as risky or risk averse as they may be!). Having a clock would give players some of that surefire knowledge while not being too powerful and "brainless" like a timer.
-The flare resistant rooms are orange and have light in them (also look a bit different) but if you couldn't identify them that's really good feedback - we could've made that clearer / more easily visible! We definitely wanted them to have windows though since seeing the solar flare outside starting and ending is important when the player's communication breaks down hehe