Trouble with naming images "image can't be found" [SOLVED]

[HochElf]

Greetings. This is my first post here, so I hope this is really the right place for my question.
Today I tried to create a map with image buttons. And got a weird exception. "Imagebutton has no idle"
It was particularly weird, b/c I had created an idle and a hover image and placed it in a folder structure (button/house/roomPC) and the images were named (button house roomPC idle.png) and (button house roomPC hover.png). So I tried to circumvent this habit by a text button, just to see, if my map is working at all. And I had to learn, that the background image for the PC room also not show up. Folder structure (bg/home/roomPC) file name (bg home roomPC.jpg) I was baffled b/c every other image showed up so far. Then it hit me, those were the only images with big letters in later positions. I removed them and it worked like a charm.

So here is my question, could it be that there are problems with case sensitivity? On a normal basis, I would name a file like kitchenHome, kitchenSchool, kitchenOffice etc. To differentiate them. But currently it looks like, I can't do that.

[Per K Grok]

Greetings. This is my first post here, so I hope this is really the right place for my question.
Today I tried to create a map with image buttons. And got a weird exception. "Imagebutton has no idle"
It was particularly weird, b/c I had created an idle and a hover image and placed it in a folder structure (button/house/roomPC) and the images were named (button house roomPC idle.png) and (button house roomPC hover.png). So I tried to circumvent this habit by a text button, just to see, if my map is working at all. And I had to learn, that the background image for the PC room also not show up. Folder structure (bg/home/roomPC) file name (bg home roomPC.jpg) I was baffled b/c every other image showed up so far. Then it hit me, those were the only images with big letters in later positions. I removed them and it worked like a charm.

So here is my question, could it be that there are problems with case sensitivity? On a normal basis, I would name a file like kitchenHome, kitchenSchool, kitchenOffice etc. To differentiate them. But currently it looks like, I can't do that.

If you are using Renpy's automatic definition of images, the name will be in lowercase only, even if the actual filename contains uppercase letters.

So you will find kitchenHome.jpg with kitchenhome, but not with kitchenHome.

If you define the image yourself you can use uppercase letters in the defined name

image bg kitchenHome= "bg/home/roomPC/kitchenHome.jpg"

Another thing, I would not use a lot of empty spaces in a file name. But that might be that I'm out of date.

[HochElf]

Thank you for clarification.
That explains a lot. And here I thought I could reduce the amount of work, I have to do.